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Cisco patched a critical Unified CM flaw with public PoC code that allows unauthenticated attackers to launch SSRF attacks remotely. Cisco has addressed a high-severity vulnerability, tracked as CVE-2026-20230, affecting Unified CM and Unified CM SME. The flaw, caused by improper validation of certain HTTP requests, allows a remote attacker without authentication to perform server-side […]

Security Affairs 5 Jun 2026, 1:10 a.m. CVE-2026-20230 Authentication CVE Cisco Critical Exploit Flaw Patch PoC Unauthenticated Vulnerability