Security Digest · Vulnerability record
CVE-2025-54949: ExecuTorch heap buffer overflow vulnerability
A heap buffer overflow vulnerability in the loading of ExecuTorch models can potentially result in code execution or other undesirable effects.
CVSS 9.8 Critical EPSS 0.7% · p51
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- 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
From the GitHub advisory
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
Weakness type: CWE-122.
Product: executorch (PyPI) · Assigned by: facebook · Published: 2025-08-07
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| PyPI | executorch | < 0.7.0 | 0.7.0 |
| Maven | org.pytorch:executorch-android | < 0.7.0 | 0.7.0 |
| Swift | github.com/pytorch/executorch | < 0.7.0 | 0.7.0 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Meta Platforms, Inc | ExecuTorch | < https://github.com/pytorch/executorch/commit/ede82493dae6d2d43f8c424e7be4721abe5242be |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- 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.
Timeline
- — CVE record published by facebook
- — GitHub-reviewed advisory GHSA-9m39-3mf3-xwch published (critical)
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-9m39-3mf3-xwch github.com
- CVE.org record CVE-2025-54949 cve.org
- NVD entry CVE-2025-54949 nvd.nist.gov
Other references from the CVE record and advisory
- facebook.com facebook.com
- github.com github.com