CVE-2025-20234 Information

Jun 19, 2025 cve

Description

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 .

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Reference

https://blog.clamav.net/2025/06/clamav-143-and-109-security-patch.html https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-udf-hmwd9nDy

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

5.3

CNNVD-202506-2346 (Published: 2025-06-18)

Share on: