Out-of-bounds write in ClamAV - CVE-2025-20260
Published: June 18, 2025
Vulnerability identifier: #VU111270
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Red
CVE-ID: CVE-2025-20260
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ClamAV
Affected software:
ClamAV
ClamAV
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing PDF files. A remote attacker can pass a specially crafted PDF file to the application, trigger an out-of-bounds write and execute arbitrary code on the target system.
How to mitigate CVE-2025-20260
Install updates from vendor's website.