What’s Vulnerable › Vulnerabilities

CVE-2025-43963

• 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 allows out-of-buffer access because split_col and split_row values are not checked in 0x041f tag processing.

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/be26e7639ecf8beb55f124ce780e99842de2e964
• 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

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