How severe is CVE-2025-43964?

CVE-2025-43964 has a CVSS 3.x base score of 2.9, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-43964 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43964?

CVE-2025-43964 affects Libraw. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-43964?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-43964 have an EU (EUVD) identifier?

Yes. CVE-2025-43964 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11959.

When was CVE-2025-43964 published?

CVE-2025-43964 was published on 2025-04-21 and last updated on 2026-06-17.

CVE-2025-43964

CVE-2025-43964 is a low-severity vulnerability in Libraw with a CVSS 3.x base score of 2.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1284.

Key facts

Severity: Low (CVSS 3.x base score 2.9)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11959
Weakness: CWE-1284
Affected product: Libraw
Published: 2025-04-21
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-43964?: CVE-2025-43964 has a CVSS 3.x base score of 2.9, rated low severity. It is exploitable over local access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-43964 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43964?: CVE-2025-43964 affects Libraw. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-43964?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-43964 have an EU (EUVD) identifier?: Yes. CVE-2025-43964 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11959.
When was CVE-2025-43964 published?: CVE-2025-43964 was published on 2025-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:*

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