What’s Vulnerable › Vulnerabilities

CVE-2025-43962

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-21 · updated 2026-06-17
• Weakness: CWE-125

Description

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: before 0.21.4 — fixed in 0.21.4

How to fix

Upgrade to a fixed version: LibRaw 0.21.4. Check the vendor advisory for mitigations.

References

• https://github.com/LibRaw/LibRaw/commit/66fe663e02a4dd610b4e832f5d9af326709336c2
• https://github.com/LibRaw/LibRaw/compare/0.21.3...0.21.4
• https://www.libraw.org/news/libraw-0-21-4-release
• https://lists.debian.org/debian-lts-announce/2025/04/msg00038.html

Get alerted when CVE-2025-43962 or the next vulnerability affects your stack