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#3 The Hacker News general June 24, 2026 at 06:50 UTC

Cisco Unified CM Flaw Exploited After PoC Reveals File-Write Path to Root

By [email protected] (The Hacker News)

AI Summary

Threat actors have begun actively exploiting CVE-2026-20230 (CVSS 8.6), an improper input validation flaw in Cisco Unified Communications Manager (Unified CM) and Unified CM SME, after a public proof-of-concept revealed a file-write path to root access. The vulnerability allows unauthenticated remote attackers to achieve root-level code execution; Cisco had issued patches in early June but active exploitation is now confirmed, making immediate patching critical for enterprise UC deployments.

Read full article → https://thehackernews.com/2026/06/cisco-unified-cm…

Relevance score: 85.0/100

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