What is CVE-2025-12474?

CVE-2025-12474 is a medium-severity vulnerability in Google Libjxl, classified under Use of Uninitialized Resource. CVSS score: 4.4/10. Published 2026-02-11.

How severe is CVE-2025-12474?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Vulnerability in Google Libjxl

CVE-2025-12474

A specially-crafted file can cause libjxl's decoder to read pixel data from uninitialized (but allocated) memory. This can be done by causing the decoder to reference an outside-image-bound area in a subsequent patches. An incorrect optimization causes the decoder to omit populating those areas.

Published 2026-02-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.001 (1.0th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

Google Libjxl — versions 0.7
Libjxl Project

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

github.com/libjxl/libjxl/pull/4495 (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2025-12474?: CVE-2025-12474 is a medium-severity vulnerability in Google Libjxl, classified under Use of Uninitialized Resource. CVSS score: 4.4/10. Published 2026-02-11.
How severe is CVE-2025-12474?: Medium severity. CVSS v3 base score is 4.4 out of 10.