7.5

CVE-2026-38346: ffmpeg Integer Overflow or Wraparound

CVSS: 7.5v3.1HighAwaiting analysis
AliasesUBUNTU-CVE-2026-38346DEBIAN-CVE-2026-38346
Published 27-08-2026Last modified 28-08-2026
Open JSON

Vulnerability summary

CVE-2026-38346 is a high (CVSS 7.5) Integer Overflow or Wraparound vulnerability in ffmpeg. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 38.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · +0.14 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
OPENSUSE-SU-2026:11794-1OPENSUSE-SU-2026:12064-1OPENSUSE-SU-2026:12108-1USN-8915-1

Timeline

  1. 27-08-2026
    PublishedVulnerability first disclosed.
  2. 28-08-2026
    Last modifiedVulnerability information updated.

Description

An integer overflow in the yuv2planeX_8_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

39%

Versus all other CVEs

30-day change

+0.14 pp

From 0.32% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.46%

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

Ubuntu2 products
  • ffmpegAll versions (No fix recorded) | < 7:2.8.17-0ubuntu0.1+esm18 | < 7:3.4.11-0ubuntu0.1+esm16 | < 7:4.2.7-0ubuntu0.1+esm18 | < 7:4.4.2-0ubuntu0.22.04.1+esm17 | < 7:6.1.1-3ubuntu5+esm15 | < 7:8.0.1-3ubuntu2+esm5
  • libavAll versions (No fix recorded)
Debian1 product
  • ffmpeg< 7:5.1.9-0+deb12u1 | < 7:7.1.4-0+deb13u1 | < 7:8.1-1

2 vendors · 3 products

References

6 links