# What is CVE-2023-1620? > CVE-2023-1620 is a medium-severity flaw (CVSS 4.9) in 750-331 Firmware from Wago, published on 26 June 2023. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.9%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2023-1620 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 25 out of 100 (Low); action: Monitor. Kept up to date as the evidence changes. - **Severity:** Medium (CVSS 4.9 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 0.9% (latest exploit-likelihood forecast) - **Published:** 26 June 2023 - **Record last updated:** 2 October 2024 - **Main product:** 750-331 Firmware from Wago - **Affected products:** 152 ## What is CVE-2023-1620? In plain terms It can be attacked from anywhere on the internet with an administrator account, and nobody has to click anything. If it works, the attacker can take it offline. ### The official description Multiple WAGO devices in multiple versions may allow an authenticated remote attacker with high privileges to DoS the device by sending a specifically crafted packet to the CODESYS V2 runtime. ### What kind of flaw is it? - CWE-1288: Improper Validation of Consistency within Input ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Easy: no special conditions - Login needed first: An administrator account - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can take it offline Severity vector: `CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H` ## Is CVE-2023-1620 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.9%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.9%, 0.9%, 0.9%, 0.9%, 0.9%, 0.9%, 0.9%. ### Timeline - 26 June 2023: Published - 2 October 2024: Record last updated ### How Precursor Intelligence ranks it CVE-2023-1620 scores **25 out of 100 (Low)**, with the action "Monitor". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: smaller factor - Threat activity around it: smaller factor 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2023-1620? The published record lists 152 products. Versions are as published: "before fw17" means every version up to, but not including, fw17. - [750-331 Firmware](https://www.precursorintelligence.com/product/wago/750-331_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-8202 Firmware](https://www.precursorintelligence.com/product/wago/750-8202_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/000-011 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/000-012 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/000-022 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/025-002 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8202/040-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8203 Firmware](https://www.precursorintelligence.com/product/wago/750-8203_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8203/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8204 Firmware](https://www.precursorintelligence.com/product/wago/750-8204_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8204/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8206 Firmware](https://www.precursorintelligence.com/product/wago/750-8206_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8206/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8206/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8206/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8206/040-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8207 Firmware](https://www.precursorintelligence.com/product/wago/750-8207_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8207/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8207/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8208 Firmware](https://www.precursorintelligence.com/product/wago/750-8208_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8208/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8208/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8210 Firmware](https://www.precursorintelligence.com/product/wago/750-8210_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8210/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8210/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8211 Firmware](https://www.precursorintelligence.com/product/wago/750-8211_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8211/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8211/040-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8212 Firmware](https://www.precursorintelligence.com/product/wago/750-8212_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/000-100 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/025-002 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/040-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8212/040-010 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8213 Firmware](https://www.precursorintelligence.com/product/wago/750-8213_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8213/040-010 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8214 Firmware](https://www.precursorintelligence.com/product/wago/750-8214_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8215 Firmware](https://www.precursorintelligence.com/product/wago/750-8215_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8216 Firmware](https://www.precursorintelligence.com/product/wago/750-8216_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8216/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8216/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8216/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-8217 Firmware](https://www.precursorintelligence.com/product/wago/750-8217_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8217/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8217/600-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - 750-8217/625-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): fw22, before fw22 - [750-331](https://www.precursorintelligence.com/product/wago/750-331) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8202](https://www.precursorintelligence.com/product/wago/750-8202) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/000-011 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/000-012 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/000-022 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/025-002 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8202/040-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8203](https://www.precursorintelligence.com/product/wago/750-8203) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8203/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8204](https://www.precursorintelligence.com/product/wago/750-8204) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8204/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8206](https://www.precursorintelligence.com/product/wago/750-8206) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8206/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8206/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8206/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8206/040-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8207](https://www.precursorintelligence.com/product/wago/750-8207) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8207/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8207/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8208](https://www.precursorintelligence.com/product/wago/750-8208) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8208/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8208/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8210](https://www.precursorintelligence.com/product/wago/750-8210) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8210/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8210/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8211](https://www.precursorintelligence.com/product/wago/750-8211) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8211/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8211/040-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8212](https://www.precursorintelligence.com/product/wago/750-8212) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/000-100 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/025-002 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/040-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8212/040-010 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8213](https://www.precursorintelligence.com/product/wago/750-8213) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8213/040-010 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8214](https://www.precursorintelligence.com/product/wago/750-8214) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8215](https://www.precursorintelligence.com/product/wago/750-8215) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8216](https://www.precursorintelligence.com/product/wago/750-8216) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8216/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8216/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8216/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-8217](https://www.precursorintelligence.com/product/wago/750-8217) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8217/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8217/600-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-8217/625-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-823](https://www.precursorintelligence.com/product/wago/750-823) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-823 Firmware](https://www.precursorintelligence.com/product/wago/750-823_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - [750-829](https://www.precursorintelligence.com/product/wago/750-829) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-829 Firmware](https://www.precursorintelligence.com/product/wago/750-829_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-831](https://www.precursorintelligence.com/product/wago/750-831) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-831 Firmware](https://www.precursorintelligence.com/product/wago/750-831_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - 750-831/000-002 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-831/000-002 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-832](https://www.precursorintelligence.com/product/wago/750-832) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-832 Firmware](https://www.precursorintelligence.com/product/wago/750-832_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - 750-832/000-002 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-832/000-002 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - [750-852](https://www.precursorintelligence.com/product/wago/750-852) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-852 Firmware](https://www.precursorintelligence.com/product/wago/750-852_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-862](https://www.precursorintelligence.com/product/wago/750-862) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-862 Firmware](https://www.precursorintelligence.com/product/wago/750-862_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - [750-880](https://www.precursorintelligence.com/product/wago/750-880) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-880 Firmware](https://www.precursorintelligence.com/product/wago/750-880_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - 750-880/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-880/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - 750-880/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-880/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - 750-880/025-002 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-880/025-002 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - 750-880/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-880/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-881](https://www.precursorintelligence.com/product/wago/750-881) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-881 Firmware](https://www.precursorintelligence.com/product/wago/750-881_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-882](https://www.precursorintelligence.com/product/wago/750-882) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-882 Firmware](https://www.precursorintelligence.com/product/wago/750-882_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-885](https://www.precursorintelligence.com/product/wago/750-885) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-885 Firmware](https://www.precursorintelligence.com/product/wago/750-885_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - 750-885/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-885/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-889](https://www.precursorintelligence.com/product/wago/750-889) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-889 Firmware](https://www.precursorintelligence.com/product/wago/750-889_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw17 - [750-890](https://www.precursorintelligence.com/product/wago/750-890) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-890 Firmware](https://www.precursorintelligence.com/product/wago/750-890_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - 750-890/025-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-890/025-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - 750-890/025-001 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-890/025-001 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - 750-890/025-002 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-890/025-002 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - 750-890/040-000 by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - 750-890/040-000 Firmware by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - [750-891](https://www.precursorintelligence.com/product/wago/750-891) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-891 Firmware](https://www.precursorintelligence.com/product/wago/750-891_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 - [750-893](https://www.precursorintelligence.com/product/wago/750-893) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Hardware): version not specified - [750-893 Firmware](https://www.precursorintelligence.com/product/wago/750-893_firmware) by [Wago](https://www.precursorintelligence.com/vendors/wago) (Operating system): before fw11 ## How do I fix CVE-2023-1620? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [cert.vde.com](https://cert.vde.com/en/advisories/VDE-2023-006/) (Mitigation, Third-party advisory) ## Questions ### What is CVE-2023-1620? CVE-2023-1620 is a medium-severity flaw in 750-331 Firmware from Wago, published on 26 June 2023. It can be attacked from anywhere on the internet with an administrator account, and nobody has to click anything. If it works, the attacker can take it offline. ### How serious is CVE-2023-1620? It scores 4.9 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2023-1620 is 25 out of 100, which is Low. Its action is "Monitor". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2023-1620 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.9%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2023-1620 affect? For 750-331 Firmware from Wago: before fw17. The record lists 152 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2023-1620? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2023-1620 affect you? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact