CVE-2022-27925
Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability
Synacor · Zimbra Collaboration Suite (ZCS)
Vulnerability details
Synacor Zimbra Collaboration Suite (ZCS) contains flaw in the mboximport functionality, allowing an authenticated attacker to upload arbitrary files to perform remote code execution. This vulnerability was chained with CVE-2022-37042 which allows for unauthenticated remote code execution.
Added to CISA KEV: 2022-08-11
Ransomware campaign use: Known
CISA due date: 2022-09-01
Defensive guidance from CISA
Apply updates per vendor instructions.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC