ClamAV
Cisco warns of high-severity ClamAV flaws with public exploits
Cisco warned of two high-severity vulnerabilities affecting the Secure Endpoint Connector that allow threat actors to crash the ClamAV scanning process in denial-of-service (DoS) attacks. The security flaws (tracked as CVE-2026-20337 and CVE-2026-20338) were found in the ZIP archive parser of ClamAV (Clam AntiVirus), the open-source and cross-platform engine used to scan files for malware. As Cisco explained […]
Cisco warns of denial of service flaw with PoC exploit code
Cisco has released security updates to patch a ClamAV denial-of-service (DoS) vulnerability, which has proof-of-concept (PoC) exploit code. Tracked as CVE-2025-20128, the vulnerability is caused by a heap-based buffer overflow weakness in the Object Linking and Embedding 2 (OLE2) decryption routine, allowing unauthenticated, remote attackers to trigger a DoS condition on vulnerable devices. If this vulnerability is […]