CVE-2026-20216highCWE-770

CVE-2026-20216: high-severity vulnerability in Cisco Secure Endpoint

ClamAV InstallShield File Format Processing Resource Exhaustion Vulnerability

Published

Follow this CVE+ Monitor Cisco Secure Endpoint+ Monitor clamav

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.6%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Cisco · Cisco Secure Endpoint
Related CVEs — Cisco Secure Endpoint

In the same product, most dangerous first.

CVE-2024-20290HIGHCVE-2024-20290EPSS 33.3%CVE-2023-20032CRITICALCVE-2023-20032EPSS 30.1%CVE-2023-20052MEDIUMCVE-2023-20052EPSS 7.0%CVE-2023-20212HIGHCVE-2023-20212EPSS 3.4%CVE-2025-20128MEDIUMClamAV OLE2 File Format Decryption Denial of Service VulnerabilityEPSS 1.8%CVE-2023-20197HIGHCVE-2023-20197EPSS 1.2%