CVE-2022-37042
Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. By bypassing authentication (i.e., not having an authtoken), an attacker can upload arbitrary files to the system, leading to directory traversal and remote code execution. NOTE: this issue exists because of an incomplete fix for CVE-2022-27925.
Actively exploited
- In the CISA exploited-vulnerabilities catalogue since Aug 11, 2022
- US federal agencies must remediate it by Sep 1, 2022 (BOD 22-01)
- Attacked 3 days before the vulnerability was made public
- Confirmed by sensors, not only by reports
- Used in ransomware campaigns
Apply updates per vendor instructions.
Source: CISA KEV · Sep 6, 2026 Sep 5, 2026 Sep 4, 2026 Sep 3, 2026 Sep 2, 2026 Sep 1, 2026
CVSS score9.8 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWeakness type (CWE)CWE-22, CWE-22
Vendorssynacor
Affected products
| Vendors | Product | Versions |
|---|---|---|
| synacor | zimbra collaboration suite | 8.8.15 |
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