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Cisco disclosed a high-impact local privilege escalation vulnerability, CVE-2026-76462, in the Secure Firewall Posture module of Cisco Secure Client. The flaw is in the interprocess communication (IPC) channel and stems from insufficient validation of user-supplied input. An authenticated local attacker can send crafted IPC messages to a …
Cisco PSIRT announced that on October 21, 2026 it will publish security advisories and fixed software releases for several products. The products are Expressway Series, IOS XR Software for ASR 9000 Series Routers, Secure Client, Snort and Unified Communications products. The Expressway, Snort and Unified Communications releases are descri…
Cisco's Open Source Snort 3 engineering team released software hardening updates for multiple vulnerabilities found during an internal security review, as part of Cisco's October 21, 2026 advisory bundle. The issues are grouped by Common Weakness Enumeration class, with one CVE ID per group. CVE-2026-20043 covers out-of-bounds writes (CWE…
