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Fencer Vulns
high 7.5

CVE-2026-38349 json

An integer overflow in the hScale16To19_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denia…

published 2026-08-27 2 mo ago modified 2026-09-09 2 mo ago also EUVD-2026-67321

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

An integer overflow in the hScale16To19_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted image file.

Patch / fix

  • ffmpeg Debian 12 7:5.1.9-0+deb12u1
  • ffmpeg Debian 13 7:7.1.4-0+deb13u1
  • ffmpeg Debian 14 7:8.1-1

debian advisories DEBIAN-CVE-2026-38349

  • ffmpeg Ubuntu Pro 16.04 LTS 7:2.8.17-0ubuntu0.1+esm18
  • ffmpeg Ubuntu Pro 18.04 LTS 7:3.4.11-0ubuntu0.1+esm16
  • ffmpeg Ubuntu Pro 20.04 LTS 7:4.2.7-0ubuntu0.1+esm18
  • ffmpeg Ubuntu Pro 22.04 LTS 7:4.4.2-0ubuntu0.22.04.1+esm17
  • ffmpeg Ubuntu Pro 24.04 LTS 7:6.1.1-3ubuntu5+esm15
  • ffmpeg Ubuntu Pro 26.04 LTS 7:8.0.1-3ubuntu2+esm5

ubuntu advisories UBUNTU-CVE-2026-38349

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ffmpeg-9 openSUSE Tumbleweed 9.0.2-5.1
  • ffmpeg-7 openSUSE Tumbleweed 7.1.5-4.1
  • ffmpeg-4 openSUSE Tumbleweed 4.4.8-6.1
  • ffmpeg-8 openSUSE Tumbleweed 8.1.2-5.1

opensuse advisories openSUSE-SU-2026:12417-1openSUSE-SU-2026:12108-1openSUSE-SU-2026:12064-1openSUSE-SU-2026:11794-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-38349 updated cvss 7.5

ffmpeg: FFmpeg: Denial of Service via crafted image file due to integer overflow

  • Red Hat Enterprise Linux AI (RHEL AI) 3 ffmpeg 6.1.6-7.el9ai Red Hat OpenShift AI (RHOAI) rhoai/odh-vllm-gaudi-rhel9
    affected: workaround, no fix available “No mitigation is currently available for this flaw.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.