Threat actors have weaponized a now-patched security flaw in Zimbra Collaboration Suite (ZCS) to deploy web shells and access mailbox data, according to findings from the Microsoft Security… Continue reading
Tag: Zimbra
Ravie LakshmananAug 20, 2026Vulnerability / Email Security A now-patched security flaw impacting Zimbra Collaboration (ZCS) has come under active exploitation in the wild, according to the Polish Computer… Continue reading
A Russian state-supported espionage group spent months reading Western mailboxes through a then-unknown flaw in Zimbra’s webmail client. The payload goes after the last 90 days of email,… Continue reading
Ravie LakshmananJul 21, 2026Email Security / Vulnerability Zimbra has rolled out fixes to address multiple critical security issues, including a command injection flaw in the Simple Network Management… Continue reading
Ravie LakshmananJul 11, 2026Vulnerability / Email Security Zimbra is urging customers to apply updates to address a critical security vulnerability impacting the Classic Web Client that could result… Continue reading
