Cyber Resilience

CVE-2025-54952

Published
08 August 2025
Modified
17 June 2026
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0059 45th percentile
Risk Priority 73 floored blend · peak EPSS

Summary

CVE-2025-54952 is a critical-severity Integer Overflow to Buffer Overflow (CWE-680) vulnerability in Facebook (inferred from references). Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 45th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-15 (Development Process, Standards, and Tools) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

An integer overflow vulnerability exists in the model loading process of ExecuTorch, where malformed inputs can trigger allocation of smaller-than-expected memory regions. The flaw is tracked as CWE-680 and affects all versions prior to commit 8f062d3f661e20bb19b24b767b9a9a46e8359f2b. It carries a CVSS 3.1 score of 9.8, reflecting its potential for severe impact during deserialization of untrusted model files.

Remote attackers can exploit the issue over the network without authentication or user interaction by supplying a crafted ExecuTorch model. Successful exploitation may result in arbitrary code execution, memory corruption, or other unintended behavior within the loading context.

The referenced GitHub commit and Meta security advisory identify the fix as an update to the affected model-loading code; practitioners should upgrade ExecuTorch to a build that includes commit 8f062d3f661e20bb19b24b767b9a9a46e8359f2b. The associated EPSS score has remained flat at 0.0110 with no observed rise after disclosure.

EU & UK References

Vulnerability Data

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.

CWE(s)
CWE-680

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-23326Shared CWE-680
CVE-2024-55626Shared CWE-680
CVE-2026-8376Shared CWE-680
CVE-2024-38422Shared CWE-680
CVE-2025-21442Shared CWE-680
CVE-2025-53510Shared CWE-680
CVE-2024-2608Shared CWE-680
CVE-2024-6381Shared CWE-680
CVE-2024-24478Shared CWE-680
CVE-2025-32023Shared CWE-680

Affected Assets

Facebook
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SA-11 Developer Testing and Evaluation good match

Developer testing and analysis (static, dynamic, fuzzing) finds integer-overflow-to-allocation defects before deployment.

SA-15 Development Process, Standards, and Tools partial match

Mandates documented development standards and tools that enforce secure coding rules against unsafe integer arithmetic.

SA-8 Security and Privacy Engineering Principles partial match

Requires engineering principles such as safe arithmetic and bounds-checked allocation that directly stop integer overflow during memory-size computation.

SI-10 Information Input Validation partial match

Validates untrusted size/offset inputs before they reach allocation calculations, structurally blocking the integer overflow path.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent integer-overflow flaws during development, but eliminating only this CWE covers only part of the broad control intent.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect integer-overflow-to-buffer-overflow conditions during development.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates practices that can catch integer overflows before deployment.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify safe integer handling and bounds checking.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles encourage use of safe arithmetic libraries and overflow detection.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require prevention of integer overflows that lead to buffer overflows.

References