VulnerabilityModified

CVE-2025-43963

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.

CRITICAL 9.1EPSS 0.42%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
EPSS: 0.42% probability · 36th percentile
CISA KEV: Not listed
Weakness: CWE-125
Affected: libraw/libraw
Source: cve@mitre.org

References

https://github.com/LibRaw/LibRaw/commit/be26e7639ecf8beb55f124ce780e99842de2e964Patch
https://github.com/LibRaw/LibRaw/compare/0.21.3...0.21.4Patch, Release Notes
https://www.libraw.org/news/libraw-0-21-4-releaseRelease Notes
https://lists.debian.org/debian-lts-announce/2025/04/msg00038.html

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.