# CVE-2025-15217: Tenda AC23 HTTP POST Request formSetPPTPUserList buffer overflow

> A remote attacker can trigger a buffer overflow in the Tenda AC23 router via a crafted HTTP POST request, potentially leading to code execution or service disruption.

- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P`)
- **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:** 30 Dec 2025
- **Updated:** 24 Feb 2026
- **Also known as:** GHSA-mg7r-rmfx-wx93

## What is CVE-2025-15217?

CVE-2025-15217 is a high-severity memory corruption vulnerability in Tenda AC23, published on 30 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A security flaw has been discovered in Tenda AC23 16.03.07.52. Affected is the function formSetPPTPUserList of the component HTTP POST Request Handler. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely.

Weakness: CWE-120 (Buffer Copy without Checking Size of Input), CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2025-15217?

It affects 1 product.


Products: Tenda Ac23 Firmware.

## How do I fix CVE-2025-15217?

No fix has been published for CVE-2025-15217 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-15217 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15217 exists.

## Other vulnerabilities in Tenda AC23

- [CVE-2023-40799](https://insights.sbomify.com/CVE-2023-40799/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-43101](https://insights.sbomify.com/CVE-2022-43101/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-43102](https://insights.sbomify.com/CVE-2022-43102/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-43103](https://insights.sbomify.com/CVE-2022-43103/): Memory corruption in n/a (critical 9.8)
- [CVE-2022-43104](https://insights.sbomify.com/CVE-2022-43104/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-15217 and fix it if it is affected.

What it is: CVE-2025-15217 is a high-severity memory corruption vulnerability in Tenda AC23, published on 30 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15217 exists.

Affected product: Tenda AC23. 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-2025-15217/ (Markdown: https://insights.sbomify.com/CVE-2025-15217/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-15217
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-15217
- OSV: https://osv.dev/vulnerability/CVE-2025-15217

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-15217/
Summaries are generated and may contain mistakes; the official description above is the record.