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ClamAV Vulnerabilities Affecting Cisco Products: August 2026

medcisco_psirtPublished 2026-08-07

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 <a href="#details">Details</a> section of this advisory. For additional information on these vulnerabilities in ClamAV, see the <a href="https://blog.clamav.net/2026/08/clama

MITRE ATT&CK techniques

VulnerabilitiesT1588.006

Indicators of compromise

CVE-2026-20337cve
CVE-2026-20338cve
CVE-2026-20339cve
CVE-2026-20345cve
CVE-2026-20346cve
CVE-2026-20347cve
CVE-2026-20348cve
https://blog.clamav.net/2026/08/clamav-154-and-146-security-patch.htmlurl

Original source: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-WuuvVd26?vs_f=Cisco%20Security%20Advisory%26vs_cat=Security%20Intelligence%26vs_type=RSS%26vs_p=ClamAV%20Vulnerabilities%20Affecting%20Cisco%20Products:%20August%202026%26vs_k=1