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5 reports · 5 sources · tracked since 17h ago EPSS 26%

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

AI synthesis Cisco Unified CM SSRF flaw (CVE-2026-20230) actively exploited for webshell deployment after PoC release.

vulnerabilityzero day CVE-2026-20230
Why this ranks Transparent score: 30 Editorially featured by AI
coverage +15 source breadth +10 urgency +1 freshness +4

What changed

Coverage timeline

Every report remains linked to its original publisher.

  1. SecurityWeek Coverage expanded

    Hackers Exploiting Cisco Unified CM Vulnerability ↗

    Cisco noted that a PoC had been available for CVE-2026-20230 when it announced patches in early June. The post Hackers Exploiting Cisco Unified CM Vulnerability appeared first on SecurityWeek.

  2. The Hacker News Coverage expanded

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

    Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified CM SME). The vulnerability, tracked as CVE-2026-20230 (CVSS score:...

  3. Help Net Security Coverage expanded

    Cisco Unified CM flaw actively exploited to drop webshells (CVE-2026-20230) ↗

    CVE-2026-20230, a server-side request forgery (SSRF) vulnerability affecting Cisco’s Unified Communications Manager (Unified CM), is being exploited to drop webshells and achieve remote code execution capability on the underlying server. “Our honeypots are seeing automated swe...

  4. Security Affairs Coverage expanded

    Cisco Unified CM Flaw CVE-2026-20230 Actively Exploited in the Wild ↗

    Attackers exploit Cisco Unified CM flaw (CVE-2026-20230) allowing unauth HTTP requests to trigger SSRF, write files, and gain root access Cisco Unified Communications Manager has a serious vulnerability, tracked as CVE-2026-20230 (CVSS score of 8.6), that attackers are already...