Vulnerability · Published Jun 18, 2025 · Assigned by cisco
CVE-2025-20234ClamAV UDF File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
Medium 5.3
In plain English
A medium-severity out-of-bounds read in Cisco Secure Endpoint from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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 .
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | clamav | 1.4.3+dfsg-1 | DEBIAN-CVE-2025-20234 |
| Debian:14 | clamav | 1.4.3+dfsg-1 | DEBIAN-CVE-2025-20234 |
| Ubuntu:22.04:LTS | clamav | 1.4.3+dfsg-0ubuntu0.22.04.1 | USN-7615-1 |
| Ubuntu:22.04:LTS | clamav | 1.4.3+dfsg-0ubuntu0.22.04.1 | UBUNTU-CVE-2025-20234 |
| Ubuntu:24.04:LTS | clamav | 1.4.3+dfsg-0ubuntu0.24.04.1 | USN-7615-1 |
| Ubuntu:24.04:LTS | clamav | 1.4.3+dfsg-0ubuntu0.24.04.1 | UBUNTU-CVE-2025-20234 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Secure Endpoint | 7.0.56.2.197.3.37.2.136.1.56.3.16.2.57.3.5 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L