CVE-2025-43964: Libraw

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

In LibRaw before 0.21.4, tag 0x412 processing in phase_one_correct in decoders/load_mfbacks.cpp does not enforce minimum w0 and w1 values.

Affected products

• Libraw Libraw: before 0.21.4 (fixed in 0.21.4)

Published 2025-04-21. Last modified 2026-06-17.