# CVE-2022-34886: Memory corruption in Printer G263DNS

> Remote attackers can execute arbitrary code on Lenovo printers by sending malicious strings that trigger a stack overflow in the firmware.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 27 Oct 2023
- **Updated:** 10 Sep 2024
- **Also known as:** GHSA-9qr5-85g4-f6rq

## What is CVE-2022-34886?

CVE-2022-34886 is a high-severity memory corruption vulnerability in Lenovo Printer G263DNS, published on 27 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A remote code execution vulnerability was found in the firmware used in some Lenovo printers, which can be caused by a remote user pushing an illegal string to the server-side interface via a script, resulting in a stack overflow.

Weakness: CWE-787 (Out-of-bounds Write), CWE-120 (Buffer Copy without Checking Size of Input)

## Which versions are affected by CVE-2022-34886?

It affects 3 products.


Products: Lenovo G263dns Firmware, Lenovo Gm265dn Firmware, Lenovo Gm266dns Firmware.

## How do I fix CVE-2022-34886?

No fix has been published for CVE-2022-34886 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-34886 being exploited?

There is no known exploitation of CVE-2022-34886 in the wild and no public exploit code.

## Other vulnerabilities in Lenovo Printer G263DNS

- [CVE-2022-3429](https://insights.sbomify.com/CVE-2022-3429/): Denial of service in Printer G263DNS (medium 6.5)
- [CVE-2022-34887](https://insights.sbomify.com/CVE-2022-34887/): Missing authorization in Printer G263DNS (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-34886 and fix it if it is affected.

What it is: CVE-2022-34886 is a high-severity memory corruption vulnerability in Lenovo Printer G263DNS, published on 27 Oct 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-34886 in the wild and no public exploit code.

Affected product: Lenovo Printer G263DNS. 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-2022-34886/ (Markdown: https://insights.sbomify.com/CVE-2022-34886/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-34886
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-34886
- OSV: https://osv.dev/vulnerability/CVE-2022-34886

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-34886/
Summaries are generated and may contain mistakes; the official description above is the record.