Cisco Cucm, Cybersecurity and Infrastructure Security Agency (CISA) has added a critical server-side request forgery (SSRF) vulnerability affecting Cisco Unified Communications Manager CISA has added a critical server-side request forgery (SSRF) vulnerability affecting Cisco Unified Communications Manager (Unified CM) to its Known Exploited Vulnerabilities (KEV) catalog, Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager (Unified CM) and Unified Communications Manager Cisco fixes actively exploited CVE-2026-20045 zero-day enabling unauthenticated RCE in Unified CM and Webex; CISA sets Feb 11, 2026 deadline. CVE-2026-20230, an SSRF in Cisco Unified CM's WebDialer component, is being actively exploited via Tor to chain file writes into persistent webshells. Patches exist for release 14; a CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. Cisco has released a security advisory to address a critical vulnerability in Cisco Unified Communications Manager. Cisco confirmed that a recently patched vulnerability in its Unified Communications Manager (Unified CM) and Unified Communications Manager Session Management Edition (Unified Cisco confirmed that attackers are now exploiting a Unified Communications Manager (Unified CM) vulnerability patched in early June. Threat intelligence firm A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Cisco has disclosed a critical server-side request forgery (SSRF) vulnerability in its Unified Communications Manager (Unified CM) and Unified CM Session Management Edition (SME). A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM) Software and Cisco Unified CM Session Management Edition (SME) Software The U. S. Find out how to order, migrate, and deploy UCM 15 with Webex Cloud A critical Cisco Unified CM vulnerability is now under active exploitation, weeks after the company issued patches warning it could allow attackers to gain root access. Learn about the features and benefits of Cisco Unified Communications Manager 15, the core of Cisco collaboration services. 6, is an unauthenticated SSRF in Cisco Unified CM with public PoC. Get real-time updates, technical details, and mitigation strategies Unified Communications Manager Version 12. For additional information on Cisco's vulnerability management, disclosure cadence, and software patching strategy, see Cisco's Transition to a Risk-Based Vulnerability Disclosure Model. 5: Get product information, technical documents, downloads, and community content. Successful exploitation could allow an unauthenticated remote attacker Cisco Collaboration Flex Plan 3. 0 provides flexible subscriptions for a range of Collaboration products, including Webex Suite and Webex Suite Essentials, which include Introduction Note To view the release notes for previous versions of Cisco Unified Communications Manager, choose the Cisco Unified Communications Manager version from the following URL:. Deliver secure, reliable voice and video and future Learn about the latest release of Cisco Unified Communications Manager, a call control platform for Cisco Unified Communications solutions. Detailed information about CISA sets urgent deadline to fix Cisco flaw exploited in attacks. Find product overview, documentation, security Learn what CUCM is, how it works, and why it's important for enterprise communication and collaboration. Exploitation can escalate to root — patch to 14SU6 or 15SU5. Discover Cisco Unified Communications Manager (UCM), the industry-leading on-premises call control platform. A recently patched vulnerability affecting Cisco’s Unified Communications Manager (Unified CM) product is being exploited in attacks, according to exploit intelligence firm Defused. Find software and support documentation to design, install and upgrade, configure, and troubleshoot the Cisco Unified Communications Manager (CallManager). CUCM is the foundation of Cisco's UC solutions, powering voice, video, and Cisco Unified Communications Manager (CUCM) is used to manage and control enterprise voice, video, and collaboration systems. Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability (CVE-2026-20230) Posted by Diksha Ojha on June 4, 2026 CVE-2026-20230, CVSS 8. Level up and earn exclusive prizes! This article explains the Cisco Unified Communication Manager (CUCM), which we call a full-blown Communications Manager. It serves as the central hub for all business communication activities, Earn 100 points per survey completed and compete on the Cisco Live Challenge leaderboard.
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