CVE-2025-43963 Memory corruption in LibRaw
Out-of-buffer access in LibRaw allows attackers to cause denial of service or potentially execute code via crafted raw image files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-43963?
CVE-2025-43963 is a low-severity memory corruption vulnerability in Libraw Libraw, published on 20 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In LibRaw before 0.21.4, phase_one_correct in decoders/load_mfbacks.cpp allows out-of-buffer access because split_col and split_row values are not checked in 0x041f tag processing.
Weakness: CWE-125
Which versions are affected by CVE-2025-43963?
It affects 1 product.
Products include Libraw Libraw.
How do I fix CVE-2025-43963?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-43963 being exploited?
There is no known exploitation of CVE-2025-43963 in the wild and no public exploit code.
Other vulnerabilities in Libraw Libraw
Sources
Also known as AZL-61810, DEBIAN-CVE-2025-43963, GHSA-3w5w-m35v-rfp7, JLSEC-2026-1111, UBUNTU-CVE-2025-43963.