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Vulnerabilities

Vulnerability · 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.

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

Check if you run it

No confirmed exploitation is on record for CVE-2025-43963. EPSS is 0.44%. 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
0.44%
Remediation
Version ranges on file
Affected products
vendor LibRaw LibRaw 0 <0.21.4

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.

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-2025-43963

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-2025-43963. EPSS is 0.44%. 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 0.44%. 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, 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.

  2. Nov 3, 2025 · EUVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2025-43963

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-43963

    30-day exploitation probability 0.4%

    first.org
  • EUVDVulnerability recordEUVD-2025-11960

    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.

    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.