CVE-2025-9165

What it is

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".

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. Limited direct impact.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-08-19 20:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 10:08 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.2% in the next 30 days (EPSS).
• Severity: 1.1 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2025-08-19 20:15 UTC

Last modified

2026-06-17 10:08 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-401

Record status

Modified

Affected

• Libtiff 4.7.0

Attack profile CVSS 4.0 · 1.1

Attack vector

Local

Complexity

High

Attack requirements

None

Privileges needed

Low

User interaction

None

Confidentiality

None

Integrity

None

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2025-9165.md and follow it. Check whether this project is affected by CVE-2025-9165. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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