CISA, NSA, and FBI Issue Alert on Russian State-Sponsored Exploitation of Zimbra Collaboration Suite

U.S. intelligence and cybersecurity agencies have identified ongoing exploitation of Zimbra Collaboration Suite vulnerabilities by Russian state-supported actors to gain unauthorized access to sensitive data. The advisory highlights a persistent campaign targeting organizations using unpatched software, though specific victim identities remain undisclosed. This activity underscores the continued use of known vulnerabilities in enterprise collaboration tools as a primary vector for state-sponsored espionage.