CVE-2025-20234

Severity CVSS v4.0:

Pending analysis

Type:

CWE-125 Out-of-bounds Read

Publication date:

18/06/2025

Last modified:

11/08/2025

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.<br /> <br /> 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.<br /> For a description of this vulnerability, see the .

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

5.30

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:clamav:clamav::::::::	1.2.0 (including)	1.4.3 (excluding)
cpe:2.3:a:cisco:secure_endpoint::::::linux::*		1.26.1 (excluding)
cpe:2.3:a:cisco:secure_endpoint::::::macos::*		1.26.1 (excluding)
cpe:2.3:a:cisco:secure_endpoint::::::windows::*		7.5.21 (excluding)
cpe:2.3:a:cisco:secure_endpoint::::::windows::*	8.0.1.21160 (including)	8.4.5 (excluding)
cpe:2.3:a:cisco:secure_endpoint_private_cloud::::::::		4.2.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-20234

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools