Cisco Systems on Wednesday shipped a high priority fix for its Cisco Unified Communications Manager software, formerly known as CallManager. Cisco gave the flaw, which allows remote code executions, a ...

Cisco Systems has released a security update that addresses flaws in its CallManager and Unified Communications Manager product line. An attacker can exploit the flaws to conduct cross-site scripting ...

Colleague Joris Evers reports today that Cisco has just issued a couple of fixes for two VoIP-related security flaws. Both flaws exist in Cisco's CallManager software, a screen of which is shown at ...

Cisco Systems issued an advisory on Wednesday warning customers about vulnerabilities in its Unified Communications Manager that could interrupt voice services and disclose information useful to an ...

Cisco fixes actively exploited CVE-2026-20045 zero-day enabling unauthenticated RCE in Unified CM and Webex; CISA sets Feb 11, 2026 deadline.

New features in Cisco’s CallManager software promise to make the IP PBX platform more secure and interoperable with standards-based VoIP equipment, while adding native support for video phone calls, ...

One day after Ballmer, Chambers detail collaboration, Microsoft singles out Cisco CallManager as inferior to new Office Communications Server 2007 designed to monitor network performance. One day ...

Cisco System Inc.’s update to its CallManager IP PBX — introduced this week with native SIP support — will require broader upgrades to other network ...

In a report issued Monday, Jake Reynolds, senior security engineer at FishNet, said the vulnerability affects versions 3.1 and higher of Call Manager, which handles call routing and call signaling ...

The San Jose-based networking equipment giant said its CallManager software is vulnerable to DoS attacks and privilege escalation, according to separate company advisories issued Wednesday. In the ...

The networking giant announces the latest version of its Internet Protocol-based PBX call manager software, which integrates video conferencing into its IP telephony solution. Marguerite Reardon ...