Cisco Unified CM Exploit Analysis: CVE-2026-20230 File-Write Flaw Drives Federal Patch Mandate
Active exploitation of CVE-2026-20230, a critical SSRF vulnerability in Cisco Unified CM enabling unauthenticated file writes and potential root access via the WebDialer service, has prompted CISA to add the flaw to its KEV catalog with a June 28, 2026 deadline for federal agencies. Despite WebDialer being disabled by default, misconfigurations in enterprise deployments are exposing systems to attack, highlighting the critical need for configuration validation alongside patching. Read more