CVE-2025-70103

high

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.

References

https://infosec.exchange/@sigdevel/116642233929409910

https://github.com/sigdevel/pocs/blob/main/res/libjxl/2025/2

https://github.com/libjxl/libjxl/pull/4338

https://github.com/libjxl/libjxl/issues/4337

Details

Source: Mitre, NVD

Published: 2026-05-27

Updated: 2026-05-27

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.3

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

Severity: High