CVE-2025-70103 Memory corruption in n/a
A heap buffer overflow in libjxl allows attackers to execute arbitrary code or cause denial of service via crafted PBM images.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-70103?
CVE-2025-70103 is a high-severity memory corruption vulnerability in n/a, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-122
Which versions are affected by CVE-2025-70103?
Linux distribution packages (11)
libjxl SUSE:Linux Enterprise Server 16.0 | All versions | 0.11.2-160000.2.1 |
mozjs128 SUSE:Linux Enterprise Server 16.0 | All versions | 128.14.0-160000.3.1 |
mozjs128 SUSE:Linux Enterprise Server 16.0 | All versions | 128.14.0-160000.3.1 |
libjxl SUSE:Linux Enterprise Server for SAP applications 16.0 | All versions | 0.11.2-160000.2.1 |
mozjs128 SUSE:Linux Enterprise Server for SAP applications 16.0 | All versions | 128.14.0-160000.3.1 |
mozjs128 SUSE:Linux Enterprise Server for SAP applications 16.0 | All versions | 128.14.0-160000.3.1 |
libjxl openSUSE:Leap 16.0 | All versions | 0.11.2-160000.2.1 |
libjxl-gtk openSUSE:Leap 16.0 | All versions | 0.11.2-160000.2.1 |
mozjs128 openSUSE:Leap 16.0 | All versions | 128.14.0-160000.3.1 |
mozjs115 openSUSE:Tumbleweed | All versions | 115.15.0-9.1 |
mozjs140 openSUSE:Tumbleweed | All versions | 140.10.1-2.1 |
How do I fix CVE-2025-70103?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-70103 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-70103 exists.
Sources
Also known as DEBIAN-CVE-2025-70103, ECHO-70e5-ab74-3fec, GHSA-4xm2-q73p-253r, MGASA-2026-0516, OESA-2026-3067, SUSE-SU-2026:22174-1 and 9 more.