PyTorch 2.5/2.7.1 PythonTracer profiler.stop denial of service

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in PyTorch 2.5/2.7.1. The affected element is the function profiler.stop of the component PythonTracer. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2025-63396. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in PyTorch 2.5/2.7.1. This vulnerability affects the function profiler.stop of the component PythonTracer. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

An issue was discovered in PyTorch v2.5 and v2.7.1. Omission of profiler.stop() can cause torch.profiler.profile (PythonTracer) to crash or hang during finalization, leading to a Denial of Service (DoS).

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-63396 since 10/27/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-131935) and CERT Bund (WID-SEC-2025-2589). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Open Source PyTorch

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/27/2025 CVE reserved
11/13/2025 +17 days Advisory disclosed
11/13/2025 +0 days VulDB entry created
11/13/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: 156563
Status: Not defined

CVE: CVE-2025-63396 (🔒)
GCVE (CVE): GCVE-0-2025-63396
GCVE (VulDB): GCVE-100-332272
EUVD: 🔒
CERT Bund: WID-SEC-2025-2589 - PyTorch: Schwachstelle ermöglicht Denial of Service

Entryinfo

Created: 11/13/2025 07:41
Updated: 11/13/2025 18:13
Changes: 11/13/2025 07:41 (54), 11/13/2025 12:54 (7), 11/13/2025 18:13 (1)
Complete: 🔍
Cache ID: 216::103

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