# CVE-2022-26674: ASUS RT-AX88U - Format String

> Unauthenticated remote attackers can exploit a format string vulnerability in ASUS RT-AX88U routers to execute arbitrary code or disrupt services.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Apr 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-c8vq-g263-292w

## What is CVE-2022-26674?

CVE-2022-26674 is a critical vulnerability in ASUS RT-AX88U, published on 22 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

ASUS RT-AX88U has a Format String vulnerability, which allows an unauthenticated remote attacker to write to arbitrary memory address and perform remote arbitrary code execution, arbitrary system operation or disrupt service.

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

## Which versions are affected by CVE-2022-26674?

It affects 1 product.


Products: Asus Rt-Ax88u Firmware.

## How do I fix CVE-2022-26674?

No fix has been published for CVE-2022-26674 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-26674 being exploited?

There is no known exploitation of CVE-2022-26674 in the wild and no public exploit code.

## Other vulnerabilities in ASUS RT-AX88U

- [CVE-2023-41349](https://insights.sbomify.com/CVE-2023-41349/): ASUS RT-AX88U - externally-controlled format string (high 8.8)
- [CVE-2023-34360](https://insights.sbomify.com/CVE-2023-34360/): ASUS RT-AX88U - Stored XSS (high 8.2)
- [CVE-2023-34358](https://insights.sbomify.com/CVE-2023-34358/): ASUS RT-AX88U - Out-of-bounds Read - 1 (high 7.5)
- [CVE-2023-34359](https://insights.sbomify.com/CVE-2023-34359/): ASUS RT-AX88U - Out-of-bounds Read - 2 (high 7.5)
- [CVE-2021-41437](https://insights.sbomify.com/CVE-2021-41437/): Other in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-26674 and fix it if it is affected.

What it is: CVE-2022-26674 is a critical vulnerability in ASUS RT-AX88U, published on 22 Apr 2022. 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-2022-26674 in the wild and no public exploit code.

Affected product: ASUS RT-AX88U. 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-2022-26674/ (Markdown: https://insights.sbomify.com/CVE-2022-26674/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-26674
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-26674
- OSV: https://osv.dev/vulnerability/CVE-2022-26674

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-26674/
Summaries are generated and may contain mistakes; the official description above is the record.