CVE-2024-20290: Cisco Secure Endpoint

High severity, CVSS 7.5. EPSS: 33.3% chance of exploitation in the next 30 days.

A vulnerability in the OLE2 file format parser 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 an incorrect check for end-of-string values during scanning, which may result in a heap buffer over-read. An attacker could exploit this vulnerability by submitting a crafted file containing OLE2 content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software and consuming available system resources. For a description of this vulnerability, see the ClamAV blog .

Affected products

• Cisco Secure Endpoint: before 7.5.17 (fixed in 7.5.17); from 8.0.1.21160, before 8.2.3.30119 (fixed in 8.2.3.30119)
• Cisco Secure Endpoint Private Cloud: before 3.8.0 (fixed in 3.8.0)
• Fedoraproject Fedora: version 38 only; version 39 only

Published 2024-02-07. Last modified 2026-06-17.