Unified Communications Manager
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 warns that Unified CM has hardcoded root SSH credentials
Cisco has removed a backdoor account from its Unified Communications Manager (Unified CM), which would have allowed remote attackers to log in to unpatched devices with root privileges. Cisco Unified Communications Manager (CUCM), formerly known as Cisco CallManager, serves as the central control system for Cisco’s IP telephony systems, handling call routing, device management, and […]