# CVE-2023-48194: Memory corruption in n/a

> A memory corruption vulnerability in Tenda AC8v4 routers allows attackers to overwrite registers and potentially execute arbitrary code via the set_client_qos function.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L`)
- **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:** 9 Jul 2024
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-396g-xc2g-5qhm

## What is CVE-2023-48194?

CVE-2023-48194 is a medium-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 9 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Vulnerability in Tenda AC8v4 .V16.03.34.09 due to sscanf and the last digit of s8 being overwritten with \x0. After executing set_client_qos, control over the gp register can be obtained.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2023-48194?

It affects 1 product.


Products: Tenda Ac8 Firmware.

## How do I fix CVE-2023-48194?

No fix has been published for CVE-2023-48194 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-48194 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-48194 exists.

Public exploit code:

- https://github.com/zt20xx/CVE-2023-48194 (github_poc): https://github.com/zt20xx/CVE-2023-48194

## Other vulnerabilities in Tenda Ac8 Firmware

- [CVE-2025-29100](https://insights.sbomify.com/CVE-2025-29100/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25663](https://insights.sbomify.com/CVE-2025-25663/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25664](https://insights.sbomify.com/CVE-2025-25664/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25667](https://insights.sbomify.com/CVE-2025-25667/): Memory corruption in n/a (critical 9.8)
- [CVE-2025-25668](https://insights.sbomify.com/CVE-2025-25668/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-48194 and fix it if it is affected.

What it is: CVE-2023-48194 is a medium-severity memory corruption vulnerability in Tenda Ac8 Firmware, published on 9 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-48194 exists.

Affected product: Tenda Ac8 Firmware. 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-2023-48194/ (Markdown: https://insights.sbomify.com/CVE-2023-48194/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-48194
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-48194
- OSV: https://osv.dev/vulnerability/CVE-2023-48194

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-48194/
Summaries are generated and may contain mistakes; the official description above is the record.