Disclosure summary
Synacor Zimbra Collaboration Suite (ZCS) contains an authentication bypass vulnerability in MailboxImportServlet. This vulnerability was chained with CVE-2022-27925 which allows for unauthenticated remote code execution.
CISA remediation guidance
Apply updates per vendor instructions.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Rapid7 Blog · RSS-087d9d059be8baf7b6734d576c5516c0ae3
Open original source · Updated Sep 24, 2026
When Business Email Compromise Starts Rewriting Reality
CVE mention in publisher metadata; check the original affected versions.
Original records & references
PUBLISHED 2022-08-11T00:00:00-04:00
MODIFIED 2022-08-11T00:00:00-04:00
INGESTED 2026-10-06T11:42:58-04:00