274 Zimbra Servers Compromised as 8,200 Remain Unpatched

Attackers have compromised at least 274 Zimbra servers, while thousands of unpatched systems remain potentially exposed. The Shadowserver Foundation said it identified 274 compromised internet-facing Zimbra instances on Aug. 22, up from 155 two days earlier, in attacks exploiting CVE-2026-73570. The nonprofit also found at least 8,200 unpatched...