Skip to content
Fencer Vulns
high 7.8

CVE-2023-25221 json

Libde265 v1.0.10 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_prediction function in mo…

published 2023-03-01 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-29184

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 26%
public exploits
0
none known

Summary

Libde265 v1.0.10 was discovered to contain a heap-buffer-overflow vulnerability in the derive_spatial_luma_vector_prediction function in motion.cc.

Patch / fix

  • libde265 Debian 14, Debian 13, Debian 12 1.0.11-1

debian advisories DEBIAN-CVE-2023-25221

  • libde265 Ubuntu 20.04 LTS 1.0.4-1ubuntu0.3
  • libde265 Ubuntu 22.04 LTS 1.0.8-1ubuntu0.2
  • libde265 Ubuntu Pro 16.04 LTS 1.0.2-2ubuntu0.16.04.1~esm3
  • libde265 Ubuntu Pro 18.04 LTS 1.0.2-2ubuntu0.18.04.1~esm3

ubuntu advisories UBUNTU-CVE-2023-25221

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

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-2023-25221 updated cvss 8.2

libde265: heap-based buffer overflow in derive_spatial_luma_vector_prediction() in motion.cc

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

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
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/strukturag/libde265/issues/388 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

Weakness

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.