CVE-2026-20216

A vulnerability in the InstallShield file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device. This vulnerability is due to improper handling of temporary resources during file scanning. An attacker could exploit this vulnerability by submitting a crafted InstallShield file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to terminate the ClamAV scanning process and temporarily consume available system resources, resulting in a DoS condition on the affected software.

• cisco secure endpoint (< 1.27.2) • cisco secure endpoint (< 1.29.0) • cisco secure endpoint (< 8.6.2) • clamav clamav (< 1.4.5) • clamav clamav (>= 1.5.0 < 1.5.3)