Cyber Resilience

CVE-2025-33244

Deserialization

Published
24 March 2026
Modified
25 March 2026
CVSS Score v3.1 9.0
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.0058 45th percentile
Risk Priority 63 floored blend · peak EPSS

Summary

CVE-2025-33244 is a critical-severity Deserialization of Untrusted Data (CWE-502) vulnerability. Its CVSS base score is 9.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 45th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

This vulnerability is AI-related — categorised as Deep Learning Frameworks; in the Data-Related Vulnerabilities risk domain.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SI-10 (Information Input Validation) — 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.

CVE-2025-33244 is a deserialization of untrusted data vulnerability (CWE-502) in NVIDIA APEX for Linux. This issue affects environments using PyTorch versions earlier than 2.6, where an unauthorized attacker could trigger the deserialization of untrusted data. The vulnerability carries a CVSS v3.1 base score of 9.0 (AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H) and was published on 2026-03-24.

An adjacent attacker with low privileges can exploit this vulnerability over the network with low complexity and no user interaction required. Scope changes to a higher scope upon successful exploitation, potentially allowing arbitrary code execution, denial of service, privilege escalation, data tampering, and information disclosure.

Mitigation details are available in official advisories, including NVIDIA's security bulletin at https://nvidia.custhelp.com/app/answers/detail/a_id/5782, the NVD entry at https://nvd.nist.gov/vuln/detail/CVE-2025-33244, and the CVE record at https://www.cve.org/CVERecord?id=CVE-2025-33244.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

NVIDIA APEX for Linux contains a vulnerability where an unauthorized attacker could cause a deserialization of untrusted data. This vulnerability affects environments that use PyTorch versions earlier than 2.6. A successful exploit of this vulnerability might lead to code execution,…

more

denial of service, escalation of privileges, data tampering, and information disclosure.

CWE(s)

AI Security AnalysisAI

AI Category
Deep Learning Frameworks
Risk Domain
Data-Related Vulnerabilities
OWASP Top 10 for LLMs 2025
None mapped
Classification Reason
Matched keywords: pytorch

Related Threats

MITRE ATT&CK Enterprise Techniques

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.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-12058Shared CWE-502
CVE-2026-12484Shared CWE-502
CVE-2026-31221Shared CWE-502
CVE-2026-31249Shared CWE-502
CVE-2026-47472Shared CWE-502
CVE-2026-49121Shared CWE-502
CVE-2026-31214Shared CWE-502
CVE-2026-31238Shared CWE-502
CVE-2024-48063Shared CWE-502
CVE-2025-8747Shared CWE-502

Affected Assets

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

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can uncover deserialization flaws before deployment.

Input validation directly stops deserialization of untrusted data by ensuring inputs are valid before processing.

Engineering principles such as safe deserialization and input sanitization structurally prevent the weakness from being introduced.

Integrity verification tools can detect malformed or tampered serialized data after the fact.

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-02 none match
prevents

PR.PS-02 addresses only post-deployment updates/patching and cannot prevent introduction of unsafe deserialization code, yet it can remediate some instances when the flaw exists in outdated libraries or components.

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.

finds

Security testing includes validation of deserialization routines and the use of untrusted data, reducing the likelihood that unsafe object reconstruction will be deployed.

prevents

Requiring vetted libraries, regular updates and SAST before release reduces the likelihood that deserialization logic will accept and act on attacker-controlled serialized objects.

finds

Regular scanning of third-party libraries and timely patching reduce the likelihood that unsafe deserialization vulnerabilities remain active.

none

Mandatory malware scanning of data received over networks or storage media intercepts malicious serialized payloads before they are deserialized by the target application.

References