CVE-2025-20234
ClamAV UDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
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 .
Weakness: CWE-125
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Secure Endpoint | Endpoint / EDR | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Secure Endpoint
Vendor advisory
ClamAV UDF File Parsing Out-of-Bounds Read Information Disclosure Vulnerability
Cisco’s rating: Medium (advisory CVSS 5.3) · Published Jun 18, 2025
Bug ID: CSCwo45640
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from