Is CVE-2025-43964 in the CISA KEV catalog?

No. CVE-2025-43964 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-43964?

CVE-2025-43964 has a CVSS v3 base score of 2.9 (LOW).

What is the EPSS score for CVE-2025-43964?

CVE-2025-43964 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-43964?

Upgrade libraw on debian 11 to 0.20.2-1+deb11u2 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2025-43964

LOW

2.9

CVSS v3

NVD

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.

CWE-1284

How to fix

Remediation Available

librawDebian

Fixed in:0.20.2-1+deb11u2CVE-2025-43964

Fixed in:0.20.2-2.1+deb12u1CVE-2025-43964

Fixed in:0.21.4-1CVE-2025-43964

librawUbuntu

Fixed in:0.17.1-1ubuntu0.5+esm1USN-7485-1

Fixed in:0.18.8-1ubuntu0.4+esm1USN-7485-1

Fixed in:0.19.5-1ubuntu1.4USN-7485-1

Fixed in:0.20.2-2ubuntu2.22.04.2USN-7485-1

Fixed in:0.21.2-2.1ubuntu0.24.04.1USN-7485-1

libraw-binUbuntu

Fixed in:0.17.1-1ubuntu0.5+esm1USN-7485-1

Fixed in:0.18.8-1ubuntu0.4+esm1USN-7485-1

Fixed in:0.19.5-1ubuntu1.4USN-7485-1

Fixed in:0.20.2-2ubuntu2.22.04.2USN-7485-1

Fixed in:0.21.2-2.1ubuntu0.24.04.1USN-7485-1

libraw15Ubuntu

Fixed in:0.17.1-1ubuntu0.5+esm1USN-7485-1

libraw16Ubuntu

Fixed in:0.18.8-1ubuntu0.4+esm1USN-7485-1

libraw19Ubuntu

Fixed in:0.19.5-1ubuntu1.4USN-7485-1

libraw20Ubuntu

Fixed in:0.20.2-2ubuntu2.22.04.2USN-7485-1

libraw23t64Ubuntu

Fixed in:0.21.2-2.1ubuntu0.24.04.1USN-7485-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Patch2

Release Notes1

libraw.org

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-1284 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-20699	Critical	10.0	72%	KEV	-
CVE-2021-43267	Critical	9.8	58%	-	Fix
CVE-2022-31629	Medium	6.5	49%	-	Fix
CVE-2025-9316	Unscored	-	37%	-	-
CVE-2022-36620	High	7.5	23%	-	-
CVE-2008-1440	High	7.1	23%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.