CISA Orders Federal Agencies to Patch Exploited Plex2Shell, Siemens, and SiteGuard Flaws

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added four vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, including four vulnerabilities impacting Plex Media Server that's collectively called Plex2Shell.

The vulnerabilities are listed below –

CVE-2026-96652 (CVSS score: 5.3) – Plex Media Server Server-Side Request Forgery (SSRF)