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CVE-2025-12343

Ffmpeg: double-free vulnerability in ffmpeg tensorflow dnn backend

Published: Feb 18, 2026Updated: Feb 26, 2026 Sources: CVE List NVDCWE-415
NVD MITRE
3.3CVSSLOW
EPSS Score
0.1%
Top 95.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-415

Affected Products

ffmpegffmpeg
Library
OSS Libraries / generic-library
ffmpegoss-projectUSOSS Librariesaka libavcodec

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Privilege Escalation
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References

https://access.redhat.com/security/cve/CVE-2025-12343
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2406533
bugzilla.redhat.com

Timeline

Published
Feb 18, 2026
Last Updated
Feb 26, 2026

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