ExecuTorch integer overflow vulnerability leads to code execution

published 2025-08-07 15 mo ago modified 2026-07-07 4 mo ago also GHSA-33r8-vrx9-rmcv , PYSEC-2026-1351 , EUVD-2025-23960

cvss: 9.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.7%; EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits: 0; none known

An integer overflow vulnerability in the loading of ExecuTorch models can cause smaller-than-expected memory regions to be allocated, potentially resulting in code execution or other undesirable effects. This issue affects ExecuTorch prior to commit 8f062d3f661e20bb19b24b767b9a9a46e8359f2b.

Patch / fix

links 1

github.com/pytorch/executorch@8f062d3 commit

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 15 mo ago (2025-08-08)

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
pypi	executorch	<=0.6.0	no fix listed

Affected products

Meta Platforms, Inc ExecuTorch

Classification

Weakness

CWE-680 Integer Overflow to Buffer Overflow

References

github.com /pytorch/executorch/commit/8f062d3f661e20bb19b24b767b9a9a46e8359f2b
web
facebook.com /security/advisories/cve-2025-54952
web
nvd.nist.gov /vuln/detail/CVE-2025-54952
advisory
github.com /pytorch/executorch
package
pypi.org /project/executorch
package
github.com /advisories/GHSA-33r8-vrx9-rmcv
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary