Cisco Unified Communications Manager Vulnerability Exploited

UNVERIFIED·Primary source · Heise Online

A critical vulnerability (CVE-2026-20230) in Cisco Unified Communications Manager is being actively exploited. Attackers are using SSRF to gain root access and deploy webshells. Security researchers observed automated scans originating from the Tor network.

Key Facts

01 — What / Thesis
Cisco Unified Communications Manager Vulnerability Exploited
02 — Who / Subject
Cisco, DefusedCyber
03 — Where / Locus
Global
04 — When / Temporality
June 20-22, 2026

AI Verification Note

This article is generated by cross-referencing multiple sources and official announcements. Parts relying solely on testimony or reporting are reflected in the confidence score; content and assessment are updated as new information is confirmed.

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