# What is CVE-2022-28958? > CVE-2022-28958 is a security flaw in Dir-816l Firmware from Dlink, published on 18 May 2022. It is on the list of flaws known to be exploited, so criminals are already using it. If you run an affected version, patch it first. Canonical page: https://www.precursorintelligence.com/what-is/cve-2022-28958 ## At a glance - **Verdict:** Fix this now. Attackers are using this flaw today. If you run an affected version, it goes to the top of your list. - **Precursor Intelligence risk score:** 0 out of 100 (Info); action: Track. Kept up to date as the evidence changes. - **Severity:** Not rated (CVSS n/a out of 10) - **Known to be exploited:** Yes, it is on the government list of flaws known to be exploited - **Chance of use in the next 30 days:** not available (latest exploit-likelihood forecast) - **Published:** 18 May 2022 - **Record last updated:** 29 November 2023 - **Main product:** Dir-816l Firmware from Dlink - **Affected products:** 2 ## What is CVE-2022-28958? In plain terms Here is what the published record says about this flaw, and what kind of weakness it is. ### The official description Rejected reason: DO NOT USE THIS CVE RECORD. ConsultIDs: none. Reason: This record was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: none. ### What kind of flaw is it? - Unknown: Unknown ## Is CVE-2022-28958 being exploited? Yes Attackers are already using it. It is on the government list of flaws known to be exploited. ### Timeline - 18 May 2022: Published - 29 November 2023: Record last updated ### How Precursor Intelligence ranks it CVE-2022-28958 scores **0 out of 100 (Info)**, with the action "Track". 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-2022-28958? The published record lists 2 products. - [Dir-816l Firmware](https://www.precursorintelligence.com/product/dlink/dir-816l_firmware) by [Dlink](https://www.precursorintelligence.com/vendors/dlink) (Operating system): 206b01 - [Dir-816l](https://www.precursorintelligence.com/product/dlink/dir-816l) by [Dlink](https://www.precursorintelligence.com/vendors/dlink) (Hardware): version not specified ## How do I fix CVE-2022-28958? 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. **Check it wasn’t used before you patched.** Because criminals are already using this flaw, look for signs of a break-in on affected systems using the vendor’s guidance. ### References - [dlink.com](https://www.dlink.com/en/security-bulletin/) (Vendor advisory) - [github.com](https://github.com/shijin0925/IOT/blob/master/DIR816/3.md) (Exploit, Third-party advisory) - [vulncheck.com](https://vulncheck.com/blog/moobot-uses-fake-vulnerability) (Exploit, Third-party advisory) ## Questions ### What is CVE-2022-28958? CVE-2022-28958 is a security flaw in Dir-816l Firmware from Dlink, published on 18 May 2022. Here is what the published record says about this flaw, and what kind of weakness it is. ### How serious is CVE-2022-28958? It has no severity score yet. Attackers are using this flaw today. If you run an affected version, it goes to the top of your list. ### Is CVE-2022-28958 being exploited? Attackers are already using it. It is on the government list of flaws known to be exploited. ### Which versions does CVE-2022-28958 affect? For Dir-816l Firmware from Dlink: 206b01. The record lists 2 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2022-28958? 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. Because criminals are already using it, also check affected systems for signs of a break-in. ## Does CVE-2022-28958 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