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Vulnerability record · CVE-2025-70103 · published 27 May 2026

CVE-2025-70103: Heap-based buffer overflow vulnerability

Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.

7.3 CVSS 3.1 High EPSS 0.37% · top 72.0% CWE-122 · Heap-based buffer overflow Deferred
7.3CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Heap buffer overflow vulnerability in libjxl 0.12.0 via crafted PBM images to the jxl::extras::DecodeImagePNM function in file lib/extras/dec/pnm.cc.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

LinkTags
https://github.com/libjxl/libjxl/issues/4337
https://github.com/libjxl/libjxl/pull/4338
https://github.com/sigdevel/pocs/blob/main/res/libjxl/2025/2
https://infosec.exchange/@sigdevel/116642233929409910
http://www.openwall.com/lists/oss-security/2026/05/30/7
https://github.com/libjxl/libjxl/issues/4337

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Source: NIST National Vulnerability Database (record CVE-2025-70103), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.