5.5

CVE-2025-12343: ffmpeg Double Free

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2025-12343DEBIAN-CVE-2025-12343CGA-2hhm-rpr8-r58c
Published 18-02-2026Last modified 25-02-2026
Open JSON

Vulnerability summary

CVE-2025-12343 is a medium (CVSS 5.5) Double Free vulnerability in ffmpeg. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.4% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DSA-6007-1USN-8469-1

Timeline

  1. 18-02-2026
    PublishedVulnerability first disclosed.
  2. 25-02-2026
    Last modifiedVulnerability information updated.

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 metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.02 pp

From 0.15% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard10 products
  • eco-python-ffmpeg-6-minimalAll versions (No fix recorded)
  • eco-python-ffmpeg-6-minimal-devAll versions (No fix recorded)
  • eco-python-ffmpeg-6-minimal-staticAll versions (No fix recorded)
  • eco-python-ffmpeg-7-minimalAll versions (No fix recorded)
  • eco-python-ffmpeg-7-minimal-devAll versions (No fix recorded)
Wolfi3 products
  • ffmpeg-7All versions (No fix recorded)
  • ffmpeg-7.1All versions (No fix recorded)
  • ffmpeg-8.0All versions (No fix recorded)
Debian1 product
  • ffmpeg< 7:7.1.2-0+deb13u1 | < 7:7.1.2-1
Ffmpeg1 product
Ubuntu1 product
  • ffmpeg< 7:6.1.1-3ubuntu5+esm10 | All versions (No fix recorded)

5 vendors · 16 products

References

9 links