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Vulnerabilities

Vulnerability · 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.

Published Apr 20, 2025 · catalog updated Nov 3, 2025 · LibRaw LibRaw

Check if you run it

No confirmed exploitation is on record for CVE-2025-43964. EPSS is 0.41%. Act only if a listed version of LibRaw LibRaw is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low2.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.41%
Remediation
Version ranges on file
Affected products
vendor LibRaw LibRaw 0 <0.21.4

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor LibRaw LibRaw 0 <0.21.40 <0.21.4

How to fix CVE-2025-43964

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-43964. EPSS is 0.41%. Act only if a listed version of LibRaw LibRaw is installed.

Which versions are affected?

Compare what you have installed with LibRaw LibRaw 0 <0.21.4 0 <0.21.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.41%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 20, 2025 · EUVD

    Detected

    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.

  2. Nov 3, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-43964

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-43964

    30-day exploitation probability 0.4%

    first.org
  • EUVDVulnerability recordEUVD-2025-11959

    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.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.