# CVE-2023-22960: Denial of service in n/a

> Attackers can cause denial of service on Lexmark printers by exploiting improper control of interaction frequency.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Jan 2023
- **Updated:** 2 Apr 2025
- **Also known as:** GHSA-j9cj-vhg7-rwqr

## What is CVE-2023-22960?

CVE-2023-22960 is a high-severity denial of service vulnerability in n/a, published on 23 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Lexmark products through 2023-01-10 have Improper Control of Interaction Frequency.

Weakness: CWE-307 (Improper Restriction of Excessive Authentication Attempts), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-22960?

It affects 128 products.


Products: Lexmark B2236 Firmware, Lexmark B2338 Firmware, Lexmark B2442 Firmware, Lexmark B2546 Firmware, Lexmark B2650 Firmware, Lexmark B2865 Firmware, Lexmark B3340 Firmware, Lexmark B3442 Firmware, Lexmark C2240 Firmware, Lexmark C2325 Firmware, Lexmark C2326 Firmware, Lexmark C2425 Firmware, Lexmark C2535 Firmware, Lexmark C3224 Firmware, Lexmark C3326 Firmware, Lexmark C3426 Firmware, Lexmark C4150 Firmware, Lexmark C6160 Firmware, Lexmark C9235 Firmware, Lexmark Cs331 Firmware and 108 more.

## How do I fix CVE-2023-22960?

No fix has been published for CVE-2023-22960 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-22960 being exploited?

There is no known exploitation of CVE-2023-22960 in the wild and no public exploit code.

Public exploit code:

- This vulnerability allows an attacker to bypass the credentials brute-force prevention mechanism of the Embedded Web Server (interface) of more than 60 Lexmark printer models. This issue affects both username-password and PIN authentication. (github_poc): https://github.com/t3l3machus/CVE-2023-22960

## Other vulnerabilities in n/a

- [CVE-2023-23560](https://insights.sbomify.com/CVE-2023-23560/): Server-side request forgery in n/a (critical 9.8)
- [CVE-2021-44735](https://insights.sbomify.com/CVE-2021-44735/): Command injection in n/a (critical 9.8)
- [CVE-2022-29850](https://insights.sbomify.com/CVE-2022-29850/): Security feature bypass in n/a (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-22960 and fix it if it is affected.

What it is: CVE-2023-22960 is a high-severity denial of service vulnerability in n/a, published on 23 Jan 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-22960 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-22960/ (Markdown: https://insights.sbomify.com/CVE-2023-22960/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-22960
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-22960
- OSV: https://osv.dev/vulnerability/CVE-2023-22960

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-22960/
Summaries are generated and may contain mistakes; the official description above is the record.