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 announced patches for CVE-2026-20045, a zero-day vulnerability in Unified CM that has been targeted by hackers.

The critical-rated flaw leaves unpatched systems open to full takeover Cisco has finally shipped a fix for a critical-rated zero-day in its Unified Communications gear, a flaw that's already being ...

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 ...

Mass scanning is underway for CVE-2026-20045, which Cisco tagged as critical because successful exploitation could lead to a ...

As Eric pointed out Cisco's acquisition of Jabber is all about the company delivering a unified communications solution that can go head to head with Microsoft. With its Unified Communications Manager ...