Out-of-bounds Read in Libraw
CVE-2025-43962
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.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (34.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Libraw — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Release Notes)
- cve@mitre.org (Patch, Release Notes)
- cve@mitre.org (Patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-43962?
- CVE-2025-43962 is a low-severity vulnerability in Libraw, classified under Out-of-bounds Read. CVSS score: 2.9/10. Published 2025-04-21.
- How severe is CVE-2025-43962?
- Low severity. CVSS v3 base score is 2.9 out of 10.
- Is CVE-2025-43962 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.