# CVE-2025-13032: Race condition in (Free/Inernet Security/Ultimate) Antivirus

> A local attacker can escalate privileges via a double fetch race condition in the Avast/AVG kernel driver on Windows.

- **Severity:** Critical 9.9 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **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:** 11 Nov 2025
- **Updated:** 14 Nov 2025
- **Also known as:** GHSA-hf76-wr32-wv5w

## What is CVE-2025-13032?

CVE-2025-13032 is a critical vulnerability in AVG (Free/Inernet Security/Ultimate) Antivirus, published on 11 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Double fetch in sandbox kernel driver in Avast/AVG Antivirus <25.3  on windows allows local attacker to escalate privelages via pool overflow.

Weakness: CWE-367 (Time-of-check Time-of-use (TOCTOU) Race Condition)

## Which versions are affected by CVE-2025-13032?

It affects 1 product.


Products: Avast Antivirus.

## How do I fix CVE-2025-13032?

No fix has been published for CVE-2025-13032 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-13032 being exploited?

There is no known exploitation of CVE-2025-13032 in the wild and no public exploit code.

## Other vulnerabilities in AVG (Free/Inernet Security/Ultimate) Antivirus

- [CVE-2020-10867](https://insights.sbomify.com/CVE-2020-10867/): Security feature bypass in n/a (critical 9.8)
- [CVE-2017-8307](https://insights.sbomify.com/CVE-2017-8307/): Missing authorization in n/a (critical 9.8)
- [CVE-2025-3500](https://insights.sbomify.com/CVE-2025-3500/): Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalation (critical 9.0)
- [CVE-2021-45335](https://insights.sbomify.com/CVE-2021-45335/): Missing authorization in n/a (high 8.8)
- [CVE-2021-45336](https://insights.sbomify.com/CVE-2021-45336/): Privilege escalation vulnerability in the Sandbox component of Avast Antivirus prior to 20.4 allows a local sandboxed code to gain elevated (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-13032 and fix it if it is affected.

What it is: CVE-2025-13032 is a critical vulnerability in AVG (Free/Inernet Security/Ultimate) Antivirus, published on 11 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-13032 in the wild and no public exploit code.

Affected product: AVG (Free/Inernet Security/Ultimate) Antivirus. 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-2025-13032/ (Markdown: https://insights.sbomify.com/CVE-2025-13032/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-13032
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-13032
- OSV: https://osv.dev/vulnerability/CVE-2025-13032

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-13032/
Summaries are generated and may contain mistakes; the official description above is the record.