Overview
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.
https://blog.zimbra.com/2022/08/authentication-bypass-in-mailboximportservlet-vulnerability/; https://nvd.nist.gov/vuln/detail/CVE-2022-27925
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2022-27925 |
| Vendor / Product | Synacor — Zimbra Collaboration Suite (ZCS) |
| NVD Published | 2022-04-21 |
| NVD Last Modified | 2025-10-31 |
| CVSS 3.1 Score | 7.2 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Severity | HIGH |
| CWE | CWE-22 |
| CISA KEV Added | 2022-08-11 |
| CISA KEV Deadline | 2022-09-01 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2022-09-01.
Apply updates per vendor instructions.
Timeline
| Date | Event |
|---|---|
| 2022-08-11 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2022-09-01 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2022-27925 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |