# CVE-2023-35965: Integer overflow in YF325

> An attacker can trigger heap buffer overflows via crafted network requests in the Yifan YF325 httpd manage_post functionality, potentially leading to code execution or denial of service.

- **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:** 11 Oct 2023
- **Updated:** 4 Nov 2025
- **Also known as:** GHSA-mm68-r4mx-mgx4

## What is CVE-2023-35965?

CVE-2023-35965 is a critical vulnerability in Yifan YF325, published on 11 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Two heap-based buffer overflow vulnerabilities exist in the httpd manage_post functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to a heap buffer overflow. An attacker can send a network request to trigger these vulnerabilities.This integer overflow result is used as argument for the malloc function.

Weakness: CWE-787 (Out-of-bounds Write), CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2023-35965?

It affects 1 product.


Products: Yifanwireless Yf325 Firmware.

## How do I fix CVE-2023-35965?

No fix has been published for CVE-2023-35965 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-35965 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35965 exists.

## Other vulnerabilities in Yifan YF325

- [CVE-2023-24479](https://insights.sbomify.com/CVE-2023-24479/): Auth bypass in YF325 (critical 9.8)
- [CVE-2023-32645](https://insights.sbomify.com/CVE-2023-32645/): Auth bypass in YF325 (critical 9.8)
- [CVE-2023-34346](https://insights.sbomify.com/CVE-2023-34346/): Memory corruption in YF325 (critical 9.8)
- [CVE-2023-34365](https://insights.sbomify.com/CVE-2023-34365/): Memory corruption in YF325 (critical 9.8)
- [CVE-2023-34426](https://insights.sbomify.com/CVE-2023-34426/): Memory corruption in YF325 (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35965 and fix it if it is affected.

What it is: CVE-2023-35965 is a critical vulnerability in Yifan YF325, published on 11 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-35965 exists.

Affected product: Yifan YF325. 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-2023-35965/ (Markdown: https://insights.sbomify.com/CVE-2023-35965/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35965
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35965
- OSV: https://osv.dev/vulnerability/CVE-2023-35965

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-35965/
Summaries are generated and may contain mistakes; the official description above is the record.