CVE-2026-20005

The record

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine restarts unexpectedly.

Affected packages

Related vulnerabilities

• CVE-2026-42246 Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. CWE-392
• CVE-2024-12797 Issue summary: Clients using RFC7250 Raw Public Keys (RPKs) to authenticate a server may… CWE-392