Memory Leak Vulnerability in LibTIFF Affecting Local Executions
CVE-2025-9165

4.8MEDIUM

Key Information:

Vendor

LibTIFF

Status
Libtiff
Vendor
CVE Published:
19 August 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-9165?

A memory leak vulnerability has been identified in LibTIFF version 4.7.0, specifically within the tiffcmp component. This flaw resides in functions such as _TIFFmallocExt, _TIFFCheckRealloc, TIFFHashSetNew, and InitCCITTFax3 in the file tools/tiffcmp.c. While the exploitation of this vulnerability is limited to local execution, it poses a risk of memory degradation. Users and administrators are advised to apply the patch identified by commit ed141286a37f6e5ddafb5069347ff5d587e7a4e0 to rectify this issue effectively and maintain system integrity.

Affected Version(s)

LibTIFF 4.7.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-9165 - Proof of Concept

References

https://vuldb.com/?id.320543
vdb-entrytechnical-description
https://vuldb.com/?ctiid.320543
signaturepermissions-required
https://vuldb.com/?submit.630506
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

HeureuxBuilding (VulDB User)
.
CVE-2025-9165 : Memory Leak Vulnerability in LibTIFF Affecting Local Executions