Vulnerability 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 Score
7.3
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Related Weaknesses (CWE)
References
- 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
FAQ
What is CVE-2025-70103?
CVE-2025-70103 is a vulnerability with a CVSS score of 7.3 (HIGH). 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.
How severe is CVE-2025-70103?
CVE-2025-70103 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-70103?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.