#VU111271 Out-of-bounds read in ClamAV - CVE-2025-20234
Published: June 18, 2025
Vulnerability identifier: #VU111271
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-20234
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ClamAV
ClamAV
Software vendor:
ClamAV
ClamAV
Description
The vulnerability allows a remote attacker to gain access to perform a denial of service attack.
The vulnerability exists due to a boundary condition when handling UDF files. A remote attacker can pass a specially crafted UDF file to the application, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.