Tag
#Unified Communications Manager
4 stories taggedUnified Communications Manager.
Vulnerabilities
Cisco admits hackers are breaking into its phone system software — here's what that means
A flaw in Cisco Unified Communications Manager, the software that runs office phone systems, is now being actively abused after a patch and public exploit code lit the fuse.
4 min
Vulnerabilities
Cisco Phone System Flaw Now Being Actively Exploited — Patch Immediately
A security hole in Cisco's business phone software is being used in real attacks. Millions of offices run this software. The fix has existed since June.
3 min
Vulnerabilities
Cisco Unified CM Bug Under Active Exploit After PoC Drops Root File-Write Chain
CVE-2026-20230 (CVSS 8.6) lets unauthenticated attackers smuggle crafted HTTP requests into Unified CM. Cisco's PSIRT confirms in-the-wild attempts following public PoC release.
2 min
Vulnerabilities
Public PoC Lands for Cisco Unified CM Root-Write Bug CVE-2026-20230
An unauthenticated SSRF in Cisco Unified Communications Manager opens a path to root. Cisco's PSIRT hasn't observed in-the-wild use — yet.
2 min