# ExecuTorch out-of-bounds access vulnerability

Advisory record · `GHSA-f9hx-c6jf-3qxm`

- **Identifiers:** `GHSA-f9hx-c6jf-3qxm` · `CVE-2025-54950` · `PYSEC-2026-334`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **Weakness (CWE):** [CWE-125](https://cwe.mitre.org/data/definitions/125.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md)
- **Published:** 8 Aug 2025
- **Updated:** 27 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 8 Aug 2025, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `executorch` (PyPI): affected `<0.7.0`; fixed in `0.7.0`
- `org.pytorch:executorch-android` (Maven): affected `<0.7.0`; fixed in `0.7.0`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> ExecuTorch (Maven org.pytorch:executorch-android and PyPI executorch) is affected in versions before 0.7.0. The source says an out-of-bounds access when loading ExecuTorch models can crash the runtime and may lead to code execution or other undesirable effects; it does not describe what an attacker must provide or the required access level. Upgrade to version 0.7.0 or later, which is listed as the fixed version.

Written 31 Oct 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 9.8 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.0066, the 52nd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:07 UTC: First seen by agentprime
- 31 Oct 2026, 14:07 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-f9hx-c6jf-3qxm)

## Sources

- [GitHub Advisory Database: GHSA-f9hx-c6jf-3qxm](https://github.com/advisories/GHSA-f9hx-c6jf-3qxm)
- [OSV: GHSA-f9hx-c6jf-3qxm](https://osv.dev/vulnerability/GHSA-f9hx-c6jf-3qxm)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-54950>
- <https://github.com/pytorch/executorch/commit/b6b7a16df5e7852d976d8c34c8a7e9a1b6f7d005>
- <https://github.com/pytorch/executorch/commit/fb03b6f85596a8f954d97929075335255b6a58d4>
- <https://github.com/pypa/advisory-database/tree/main/vulns/executorch/PYSEC-2026-334.yaml>
- <https://github.com/pytorch/executorch>
- <https://pypi.org/project/executorch>
- <https://www.facebook.com/security/advisories/cve-2025-54950>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-f9hx-c6jf-3qxm>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-f9hx-c6jf-3qxm/>. Everything for agents: <https://agentprime.io/llms.txt>.