Cisco Unified Communications
Cisco finally confirms attackers exploiting Unified CM flaw
Cisco confirmed that attackers are now exploiting a Unified Communications Manager (Unified CM) vulnerability patched in early June. Unified CM (formerly known as Cisco CallManager) is the central control system for Cisco IP telephony systems, handling call routing, device management, and telephony features. Threat actors without privileges can exploit the vulnerability (CVE-2026-20230) remotely in low-complexity […]
Cisco warns of critical Unified CM flaw with PoC exploit code
Cisco has released security updates to patch a critical-severity Unified Communications Manager (Unified CM) flaw that allows attackers to gain root privileges. Cisco Unified CM (formerly known as Cisco CallManager) serves as the central control system for Cisco IP telephony systems, handling device management, call routing, and telephony features. The vulnerability (tracked as CVE-2026-20230) can be exploited […]
Cisco fixes Unified Communications RCE zero day exploited in attacks
Cisco has fixed a critical Unified Communications and Webex Calling remote code execution vulnerability, tracked as CVE-2026-20045, that has been actively exploited as a zero-day in attacks. Tracked as CVE-2026-20045, the flaw impacts Cisco Unified Communications Manager (Unified CM), Unified CM Session Management Edition (SME), Unified CM IM & Presence, Cisco Unity Connection, and Webex Calling Dedicated […]