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CVE-2026-20345: Stack-based Buffer Overflow in Cisco Cisco Secure EndpointCVE-2026-20345 0 CVE-2026-20345 is a high-severity stack-based buffer overflow vulnerability in the GPT file format parser of ClamAV used by Cisco Secure Endpoint. It allows an unauthenticated remote attacker to cause a denial-of-service (DoS) condition by submitting a crafted GPT file that triggers memory corruption. The vulnerability arises from improper handling of an endian conversion operation leading to an out-of-bounds buffer write. Exploitation results in termination of the ClamAV scanning process, causing service disruption. No known exploits are reported in the wild. Patch status is not confirmed from the available data. Join the discussion | CVE Database V5 | 08/07/2026, 16:42:46 UTC Added: 08/07/2026, 16:56:50 UTC |
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