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.

Cisco has patched a critical Unity Connection security flaw that can let unauthenticated attackers remotely gain root privileges on unpatched devices. Unity Connection is a fully virtualized messaging ...

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

Cisco patched a critical exploit affecting some of its communication-based products. Designated as CVE-2026-20045, the vulnerability allows bad actors to run arbitrary commands on an affected device’s ...

Cisco released a security advisory to address a vulnerability (CVE-2024-20272) in Cisco Unity Connection. A cyber threat actor could exploit this vulnerability to take control of an affected system.

A critical vulnerability in Cisco Unity Connection – a messaging and voicemail product that forms part of the networking supplier’s unified communications lineup – could enable unauthenticated and ...

The RCE flaw lets remote attackers gain root on affected systems with no user interaction. Cisco has released multiple ...

Cisco fixed a critical flaw this week that affects multiple Unified Communications and Contact Center Solutions products and could be exploited remotely by unauthenticated attackers to execute ...