CVE-2025-20234CWE-125

ClamAV UDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Medium · published June 18, 2025

CVSS v3.1
5.3
EPSS
1%
Percentile
56.6
In the wild
Unconfirmed
What it is

A vulnerability in Universal Disk Format (UDF) processing of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

This vulnerability is due to a memory overread during UDF file scanning. An attacker could exploit this vulnerability by submitting a crafted file containing UDF content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process, resulting in a DoS condition on the affected software.

For a description of this vulnerability, see the .

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00816 · 56.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2025-06-18T16:20Z
EPSS history
Timeline
  • 18 JUN 16:20Z
    ClamAV UDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
    cvelistv5