CVE-2025-12343

Ffmpeg: double-free vulnerability in ffmpeg tensorflow dnn backend

Published Feb 18, 2026 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
A flaw was found in FFmpeg’s TensorFlow backend within the libavfilter/dnn_backend_tf.c source file. The issue occurs in the dnn_execute_model_tf() function, where a task object is freed multiple times in certain error-handling paths. This redundant memory deallocation can lead to a double-free condition, potentially causing FFmpeg or any application using it to crash when processing TensorFlow-based DNN models. This results in a denial-of-service scenario but does not allow arbitrary code execution under normal conditions.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8469-1 FFmpeg vulnerabilities
History
Type Values Removed Values Added
First Time appeared Ffmpeg
Ffmpeg ffmpeg
CPEs cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Vendors & Products Ffmpeg
Ffmpeg ffmpeg
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title FFmpeg: Double-Free Vulnerability in FFmpeg TensorFlow DNN Backend Ffmpeg: double-free vulnerability in ffmpeg tensorflow dnn backend
References
Type Values Removed Values Added
Description A flaw was found in FFmpeg’s TensorFlow backend within the libavfilter/dnn_backend_tf.c source file. The issue occurs in the dnn_execute_model_tf() function, where a task object is freed multiple times in certain error-handling paths. This redundant memory deallocation can lead to a double-free condition, potentially causing FFmpeg or any application using it to crash when processing TensorFlow-based DNN models. This results in a denial-of-service scenario but does not allow arbitrary code execution under normal conditions.
Title FFmpeg: Double-Free Vulnerability in FFmpeg TensorFlow DNN Backend
Weaknesses CWE-415
References
Metrics threat_severity

None

cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

threat_severity

Moderate

Weaknesses

Sources

Status
PUBLISHED
Assigner
fedora
Published
Updated
Feb 25, 2026, 6:15 PM
Reserved
Oct 27, 2025, 1:03 PM
Status
Analyzed
Published
Feb 18, 2026, 9:16 PM
Modified
Jun 17, 2026, 8:32 AM
Severity
Moderate
Public date
Oct 27, 2025, 12:00 AM