CVE-2026-20045 Articles

Cisco Patches Actively Exploited Zero-Day in Unified Communications and Webex

CVE-2026-20045, a CVSS 9.8 RCE flaw in Cisco Unified CM, is being actively exploited. No workaround exists—organizations must upgrade to 14SU5 or 15SU4 immediately.

January 22, 2026 Cisco zero-day CVE-2026-20045