#zimbra

Over 10,000 Zimbra servers vulnerable to ongoing XSS attacks

Apr 24, 2026 // 16:37

Over 10,000 Zimbra Collaboration Suite (ZCS) instances exposed online are vulnerable to ongoing attacks exploiting a cross-site scripting (XSS) security flaw, according to nonprofit security organization Shadowserver. […]

Russian hackers used a Zimbra vulnerability to attack Ukrainian government systems.

Mar 19, 2026 // 17:57

A hacking group known as APT28, sponsored by the Russian government’s military intelligence (GRU), took advantage of a weakness in Zimbra Collaboration Suite (ZCS) to […]

Zimbra, SharePoint Exploits; Cisco Zero-Day Used in Ransomware

Mar 19, 2026 // 11:03

CISA has advised U.S. government bodies to install security updates for two weaknesses in Synacor Zimbra Collaboration Suite (ZCS) and Microsoft Office SharePoint, because they […]

Federal agencies must fix exploited Zimbra security hole. CISA mandates patch to address active attacks.

Mar 18, 2026 // 23:57

CISA has directed U.S. government agencies to protect their systems from an actively used vulnerability in Zimbra. Zimbra is a widely used email and groupware […]

Previous 1 2