Vulnerability in Libraw

CVE-2025-43964

In LibRaw before 0.21.4, tag 0x412 processing in phase_one_correct in decoders/load_mfbacks.cpp does not enforce minimum w0 and w1 values.

EPSS: 0.004 (32.3th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-43964?
CVE-2025-43964 is a low-severity vulnerability in Libraw, classified under Improper Validation of Specified Quantity in Input. CVSS score: 2.9/10. Published 2025-04-21.
How severe is CVE-2025-43964?
Low severity. CVSS v3 base score is 2.9 out of 10.
Is CVE-2025-43964 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.