# CVE-2022-26941: Format string vulnerability in AT+CTGL command in Motorola MTM5000

> A format string vulnerability in Motorola MTM5000 firmware allows attackers to achieve arbitrary code execution with root privileges via the AT+CTGL command.

- **Severity:** Critical 9.6 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:U/RC:C/CR:X/IR:X/AR:X/MAV:A/MAC:L/MPR:N/MUI:N/MS:C/MC:H/MI:H/MA:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Oct 2023
- **Updated:** 12 Sep 2024
- **Also known as:** GHSA-6r76-9f7g-6w9v

## What is CVE-2022-26941?

CVE-2022-26941 is a critical memory corruption vulnerability in Motorola Mobile Radio, published on 19 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A format string vulnerability exists in Motorola MTM5000 series firmware AT command handler for the AT+CTGL command. An attacker-controllable string is improperly handled, allowing for a write-anything-anywhere scenario. This can be leveraged to obtain arbitrary code execution inside the teds_app binary, which runs with root privileges.

Weakness: CWE-134 (Use of Externally-Controlled Format String)

## Which versions are affected by CVE-2022-26941?

It affects 2 products.


Products: Motorola Mtm5400 Firmware, Motorola Mtm5500 Firmware.

## How do I fix CVE-2022-26941?

No fix has been published for CVE-2022-26941 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-26941 being exploited?

There is no known exploitation of CVE-2022-26941 in the wild and no public exploit code.

## Other vulnerabilities in Motorola Mobile Radio

- [CVE-2022-26943](https://insights.sbomify.com/CVE-2022-26943/): Weak PRNG entropy source used for authentication challenge generation in Motorola MTM5000 (high 8.8)
- [CVE-2022-26942](https://insights.sbomify.com/CVE-2022-26942/): Multiple missing pointer validation checks in trusted execution module in Motorola MTM5000 (high 8.2)
- [CVE-2022-27813](https://insights.sbomify.com/CVE-2022-27813/): Unconfigured memory protection modules in Motorola MTM5000 (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26941 and fix it if it is affected.

What it is: CVE-2022-26941 is a critical memory corruption vulnerability in Motorola Mobile Radio, published on 19 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-26941 in the wild and no public exploit code.

Affected product: Motorola Mobile Radio. 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-2022-26941/ (Markdown: https://insights.sbomify.com/CVE-2022-26941/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26941
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26941
- OSV: https://osv.dev/vulnerability/CVE-2022-26941

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26941/
Summaries are generated and may contain mistakes; the official description above is the record.