---
title: "CVE-2025-54949: ExecuTorch heap buffer overflow vulnerability"
url: https://erroneo.us/security/cve/CVE-2025-54949/
description: "CVE-2025-54949 (executorch (PyPI)): A heap buffer overflow vulnerability in the loading of ExecuTorch models can potentially result in code execution or…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-08-07
date_modified: 2026-08-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-54949"
kev: false
cvss: 9.8
epss: 0.00669
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2025-54949: ExecuTorch heap buffer overflow vulnerability

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.7% , percentile 51: FIRST’s model estimates a 0.7% chance of exploitation activity in the next 30 days, higher than 51% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes executorch (PyPI) < 0.7.0, fixed in 0.7.0 ; org.pytorch:executorch-android (Maven) < 0.7.0, fixed in 0.7.0 ; github.com/pytorch/executorch (Swift) < 0.7.0, fixed in 0.7.0 . Check your lockfile, including transitive dependencies.

## What it is

A heap buffer overflow vulnerability in the loading of ExecuTorch models can potentially result in code execution or other undesirable effects. This issue affects ExecuTorch prior to commit ede82493dae6d2d43f8c424e7be4721abe5242be

## Affected packages

- PyPI `executorch` < 0.7.0 → fixed: 0.7.0
- Maven `org.pytorch:executorch-android` < 0.7.0 → fixed: 0.7.0
- Swift `github.com/pytorch/executorch` < 0.7.0 → fixed: 0.7.0

## Affected products (CVE record)

- Meta Platforms, Inc ExecuTorch: < https://github.com/pytorch/executorch/commit/ede82493dae6d2d43f8c424e7be4721abe5242be

## Severity

- CISA-ADP CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.67% probability of exploitation activity in the next 30 days; percentile 51.

## Sources

- [GitHub Advisory GHSA-9m39-3mf3-xwch](https://github.com/advisories/GHSA-9m39-3mf3-xwch)
- [CVE.org record CVE-2025-54949](https://www.cve.org/CVERecord?id=CVE-2025-54949)
- [NVD entry CVE-2025-54949](https://nvd.nist.gov/vuln/detail/CVE-2025-54949)
- [facebook.com](https://www.facebook.com/security/advisories/cve-2025-54949)
- [github.com](https://github.com/pytorch/executorch/commit/ede82493dae6d2d43f8c424e7be4721abe5242be)

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Source page: https://erroneo.us/security/cve/CVE-2025-54949/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt