What is CVE-2023-2376?A high-severity flaw in Er-X Firmware, explained.
CVE-2023-2376 is a high-severity flaw (CVSS 8.8) in Er-X Firmware from UI, published on 28 April 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 7.6%. If you run an affected version, plan in the vendor’s fix.
Published 28 April 2023. Record last updated 17 May 2024. We keep this page's data up to date.
What is CVE-2023-2376? In plain terms.
It can be attacked from anywhere on the internet with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.
A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been classified as critical. Affected is an unknown function of the component Web Management Interface. The manipulation of the argument dpi leads to command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-227652.
What kind of flaw is it?
- CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
How an attack on it works
Read straight from its severity rating, translated out of the shorthand.
- Where an attacker can beAnywhere on the internet
- How hard it is to pull offEasy: no special conditions
- Login needed firstAn ordinary user account
- Does someone have to clickNo, nobody has to do anything
- What an attacker getsCan read data, change data and take it offline
Severity vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is CVE-2023-2376 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 7.6%. That can change at any time, which is why we keep watching.
Timeline
- Published
- Record last updated
- Exploit likelihood fell
- Exploit likelihood jumped
CVE-2023-2376 scores 57. Action: Plan remediation.
We keep the score of every published flaw up to date as the evidence changes. Four things go into the score, and evidence that criminals are actually using it counts most. In order:
- Evidence it is being exploitedBiggest factor
- How severe it isStrong factor
- How widely exposed it isSmaller factor
- Threat activity around itSmaller factor
85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score.
When CVE-2023-2376 matches software you track, it lands in your list with its score and the reasons behind it.
See your own ranked list →Who is affected by CVE-2023-2376? 4 products.
The published record lists 4 products from 1 vendor. Versions are shown as published: "before 2.0.9" means every version up to, but not including, 2.0.9. If you run one of these, check your version, then go to the fix below.
- Operating system
Er-X Firmware
by UI
Affected versionsbefore 2.0.92.0.92.0.9-hotfix22.0.9-hotfix32.0.9-hotfix42.0.9-hotfix52.0.9-hotfix6 - Operating system
Er-X-Sfp Firmware
by UI
Affected versionsbefore 2.0.92.0.92.0.9-hotfix22.0.9-hotfix32.0.9-hotfix42.0.9-hotfix5 - Hardware
Er-X
by UI
Affected versionsversion not specified - Hardware
Er-X-Sfp
by UI
Affected versionsversion not specified
How do I fix CVE-2023-2376? Four steps.
- Check whether you run itCompare 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.
- Apply the vendor’s fixInstall the latest update from the vendor. The references list where the vendor has published details.
- If you can’t patch todayFollow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in.
- Keep an eye on itTrack 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.
Does CVE-2023-2376 affect you? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 new flaw affects software Acme tracks
A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been classified as critical. Affected is an unknown function of the component...
- Matched to
- Er-X Firmware on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
CVE-2023-2376 is a high-severity flaw in Er-X Firmware from UI, published on 28 April 2023. It can be attacked from anywhere on the internet with an ordinary user account, and nobody has to click anything. If it works, the attacker can read data, change data and take it offline.
It scores 8.8 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2023-2376 is 57 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle.
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 7.6%. That can change at any time, which is why we keep watching.
For Er-X Firmware from UI: before 2.0.9, 2.0.9, 2.0.9-hotfix2, 2.0.9-hotfix3, 2.0.9-hotfix4, 2.0.9-hotfix5 and 1 more. The record lists 4 products in all, each with its versions, under "Who is affected" on this page.
Install the update the vendor names in its advisory. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet.