Secure Endpoint and ClamAV
CVE-2025-20234: ClamAV UDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
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.
Published
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Cisco Secure Endpoint 7.0 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 7.3 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 6.1 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 7.3 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.1 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 7.3 | See the advisory |
| Cisco Secure Endpoint 6.1 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 7.1 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 7.3 | See the advisory |
| Cisco Secure Endpoint 6.2 | See the advisory |
| Cisco Secure Endpoint 6.1 | See the advisory |
| Cisco Secure Endpoint 6.0 | See the advisory |
| Cisco Secure Endpoint 7.2 | See the advisory |
| Cisco Secure Endpoint 6.0 | See the advisory |
| Cisco Secure Endpoint 6.3 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.8 | See the advisory |
| Cisco Secure Endpoint 1.11 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.10 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.8 | See the advisory |
| Cisco Secure Endpoint 1.10 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.14 | See the advisory |
| Cisco Secure Endpoint 1.10 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.6 | See the advisory |
| Cisco Secure Endpoint 1.9 | See the advisory |
| Cisco Secure Endpoint 1.11 | See the advisory |
| Cisco Secure Endpoint 1.7 | See the advisory |
| Cisco Secure Endpoint 1.13 | See the advisory |
| Cisco Secure Endpoint 1.8 | See the advisory |
| Cisco Secure Endpoint 1.13 | See the advisory |
| Cisco Secure Endpoint 1.9 | See the advisory |
| Cisco Secure Endpoint 1.12 | See the advisory |
| Cisco Secure Endpoint 1.13 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 8.1 | See the advisory |
| Cisco Secure Endpoint 1.14 | See the advisory |
| Cisco Secure Endpoint 1.15 | See the advisory |
| Cisco Secure Endpoint 1.15 | See the advisory |
| Cisco Secure Endpoint 1.15 | See the advisory |
| Cisco Secure Endpoint 1.15 | See the advisory |
| Cisco Secure Endpoint 1.16 | See the advisory |
| Cisco Secure Endpoint 1.16 | See the advisory |
| Cisco Secure Endpoint 1.16 | See the advisory |
| Cisco Secure Endpoint 1.16 | See the advisory |
| Cisco Secure Endpoint 1.18 | See the advisory |
| Cisco Secure Endpoint 1.21 | See the advisory |
| Cisco Secure Endpoint 1.21 | See the advisory |
| Cisco Secure Endpoint 1.22 | See the advisory |
| Cisco Secure Endpoint 1.24 | See the advisory |
| Cisco Secure Endpoint 1.24 | See the advisory |
| Cisco Secure Endpoint 1.24 | See the advisory |
| Cisco Secure Endpoint 1.17 | See the advisory |
Always confirm against the vendor advisory, which lists every fixed hotfix.
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 .
Exploitation
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 11 Oct 2026.