# CVE-2023-35085: Integer overflow in UniFi Access Points

> Integer overflow in UniFi Access Points and Switches allows remote code execution when SNMP monitoring is enabled.

- **Severity:** Critical 9.0 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/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:** 10 Aug 2023
- **Updated:** 4 Dec 2024
- **Also known as:** GHSA-h93h-45p3-p324

## What is CVE-2023-35085?

CVE-2023-35085 is a critical vulnerability in Ubiquiti Inc UniFi Access Points, published on 10 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An integer overflow vulnerability in all UniFi Access Points and Switches, excluding the Switch Flex Mini, with SNMP Monitoring and default settings enabled could allow a Remote Code Execution (RCE).

 

Affected Products:
All UniFi Access Points (Version 6.5.50 and earlier)
All UniFi Switches (Version 6.5.32 and earlier) 
-USW Flex Mini excluded.
 

Mitigation:
Update UniFi Access Points to Version 6.5.62 or later.
Update the UniFi Switches to Version 6.5.59 or later.

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2023-35085?

It affects 2 products.


Products: Ui Unifi Switch Firmware, Ui Unifi Uap Firmware.

## How do I fix CVE-2023-35085?

No fix has been published for CVE-2023-35085 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-35085 being exploited?

There is no known exploitation of CVE-2023-35085 in the wild and no public exploit code.

Public exploit code:

- POC and EXP for CVE-2023-35085 (github_poc): https://github.com/maoruiQa/CVE-2023-35085-POC-EXP

## Other vulnerabilities in Ubiquiti Inc UniFi Access Points

- [CVE-2023-38034](https://insights.sbomify.com/CVE-2023-38034/): Command injection in UniFi Access Points (high 8.3)
- [CVE-2021-44527](https://insights.sbomify.com/CVE-2021-44527/): Denial of service in UniFi Switches (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-35085 and fix it if it is affected.

What it is: CVE-2023-35085 is a critical vulnerability in Ubiquiti Inc UniFi Access Points, published on 10 Aug 2023. 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-2023-35085 in the wild and no public exploit code.

Affected product: Ubiquiti Inc UniFi Access Points. 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-2023-35085/ (Markdown: https://insights.sbomify.com/CVE-2023-35085/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-35085
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-35085
- OSV: https://osv.dev/vulnerability/CVE-2023-35085

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-35085/
Summaries are generated and may contain mistakes; the official description above is the record.