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CISCO WARNS OF HIGH-SEVERITY CLAMAV FLAWS

SECURITY DESK1 MIN READ
WED, AUG 12, 2026

■ AI-SUMMARIZED FROM 1 SOURCE ▸ TIMELINE

Cisco has disclosed two high-severity vulnerabilities in ClamAV that attackers can exploit to crash the scanning process. Public exploits are already available.

The flaws affect Cisco Secure Endpoint Connector and enable denial-of-service attacks against the ClamAV antivirus engine. Threat actors can leverage publicly released exploits to disrupt scanning operations, potentially leaving systems unprotected during attacks. Cisco has not disclosed specific technical details about the vulnerabilities or patch availability timelines. Organizations running ClamAV should monitor Cisco's security advisories for updates and mitigation guidance. The availability of public exploits increases the urgency for users to apply patches once released. ClamAV, an open-source antivirus engine widely used in enterprise and email filtering deployments, is a common target due to its prevalence in security infrastructure.

■ SOURCES

Bleeping Computer

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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