Multiple vulnerabilities in ClamAV could allow a remote attacker to cause a denial of service (DoS) condition, interrupting scanning operations. For more information about these vulnerabilities, see the Details section of this advisory. For additional information on these vulnerabilities in ClamAV, see the ClamAV blog . Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. Notes: The Security Impact Rating (SIR) for these vulnerabilities is High for Windows-based platforms only because those platforms run the ClamAV scanning process in a privileged security context. The platforms that are highly impacted include Cisco Secure Endpoint Connector for Windows. The SIR for these vulnerabilities is Medium on other platforms, including Linux and Mac platforms, because those platforms run the ClamAV scanning process in a lower-privileged security context. The affected platforms include Secure Endpoint Connector for Linux and Mac. Cisco Secure Endpoint Private Cloud itself is not impacted by these vulnerabilities. However, the Cisco Secure Endpoint Connector software that is distributed from the device is impacted. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-88cFYyxR <br/>Security Impact Rating: High <br/>CVE: CVE-2026-20213,CVE-2026-20214,CVE-2026-20215,CVE-2026-20216,CVE-2026-20217,CVE-2026-20243,CVE-2026-20244
Multiple vulnerabilities in ClamAV (CVE-2026-20213 through CVE-2026-20217, CVE-2026-20243, CVE-2026-20244) can be exploited by a remote attacker to cause a denial of service, interrupting scanning operations. Cisco has released software updates to address these vulnerabilities, and there are no available workarounds. The Security Impact Rating is High for Windows-based platforms like Cisco Secure Endpoint Connector for Windows, and Medium for Linux and Mac platforms, due to differences in the privilege context of the ClamAV scanning process.