CVE-2025-43962: Libraw

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

In LibRaw before 0.21.4, phase_one_correct in decoders/load_mfbacks.cpp has out-of-bounds reads for tag 0x412 processing, related to large w0 or w1 values or the frac and mult calculations.

Affected products

• Libraw Libraw: before 0.21.4 (fixed in 0.21.4)

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