Is CVE-2025-9165 in the CISA KEV catalog?

No. CVE-2025-9165 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-9165?

CVE-2025-9165 has a CVSS v3 base score of 2.5 (LOW).

What is the EPSS score for CVE-2025-9165?

CVE-2025-9165 has an EPSS score of 0.20% (9th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-9165?

Upgrade tiff on debian 13 to 4.7.0-3+deb13u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2025-9165

LOW

2.5

CVSS v3

NVD

Description

A flaw has been found in LibTIFF 4.7.0. This affects the function _TIFFmallocExt/_TIFFCheckRealloc/TIFFHashSetNew/InitCCITTFax3 of the file tools/tiffcmp.c of the component tiffcmp. Executing manipulation can lead to memory leak. The attack is restricted to local execution. This attack is characterized by high complexity. It is indicated that the exploitability is difficult. The exploit has been published and may be used. There is ongoing doubt regarding the real existence of this vulnerability. This patch is called ed141286a37f6e5ddafb5069347ff5d587e7a4e0. It is best practice to apply a patch to resolve this issue. A researcher disputes the security impact of this issue, because "this is a memory leak on a command line tool that is about to exit anyway". In the reply the project maintainer declares this issue as "a simple 'bug' when leaving the command line tool and (...) not a security issue at all".

CWE-401Missing Release of Memory (Memory Leak)CWE-404

How to fix

Remediation Available

tiffDebian

Fixed in:4.7.0-3+deb13u1CVE-2025-9165

Fixed in:4.7.0-4CVE-2025-9165

libtiff5Ubuntu

Fixed in:4.0.3-7ubuntu0.11+esm16USN-7783-1

Fixed in:4.0.6-1ubuntu0.8+esm19USN-7783-1

Fixed in:4.0.9-5ubuntu0.10+esm9USN-7783-1

Fixed in:4.1.0+git191117-2ubuntu0.20.04.14+esm2USN-7783-1

Fixed in:4.3.0-6ubuntu0.12USN-7783-1

libtiff6Ubuntu

Fixed in:4.5.1+git230720-4ubuntu2.4USN-7783-1

tiffUbuntu

Fixed in:4.0.3-7ubuntu0.11+esm16USN-7783-1

Fixed in:4.0.6-1ubuntu0.8+esm19USN-7783-1

Fixed in:4.0.9-5ubuntu0.10+esm9USN-7783-1

Fixed in:4.1.0+git191117-2ubuntu0.20.04.14+esm2USN-7783-1

Fixed in:4.3.0-6ubuntu0.12USN-7783-1

Fixed in:4.5.1+git230720-4ubuntu2.4USN-7783-1

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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

9thpercentile

Low risk: more likely to be exploited than 9% of all known CVEs.

References

Patch2

Exploit3

Third-Party Advisory3

VDB Entry1

vuldb.com

Product1

libtiff.org

Related Vulnerabilities

Other CWE-401 (Missing Release of Memory (Memory Leak)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13934	High	7.5	64%	-	Fix
CVE-2016-6304	High	7.5	63%	-	Fix
CVE-2019-12265	Medium	5.3	55%	-	Fix
CVE-2001-0136	Medium	5.0	45%	-	-
CVE-2016-4232	High	7.5	36%	-	-
CVE-2001-0543	Medium	5.0	21%	-	-

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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 2026-04-29.