CVE-2022-27925
Synacor Zimbra Collaboration Suite (ZCS) Arbitrary File Upload Vulnerability
IN CISA KEV
Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 has mboximport functionality that receives a ZIP archive and extracts files from it. An authenticated user with administrator rights has the ability to upload arbitrary files to the system, leading to directory traversal.
- Vendor
- Synacor
- Product
- Zimbra Collaboration Suite (ZCS)
- CVSS 3.1
- 7.2 (high), scored by NVD (primary)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1
- 7.2 (high), scored by 134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-22
- Published
- 2022-04-21
- NVD modified
- 2026-10-01
- NVD status
- Analyzed
CISA KEV
- Date added
- 2022-08-11
- Due date
- 2022-09-01
- Ransomware use
- Known
- Required action
- Apply updates per vendor instructions.
EPSS
98.7% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- wiki.zimbra.com (Vendor Advisory)
- wiki.zimbra.com (Release Notes, Vendor Advisory)
- wiki.zimbra.com (Vendor Advisory)
- wiki.zimbra.com (Vendor Advisory)
- wiki.zimbra.com (Release Notes, Vendor Advisory)
- wiki.zimbra.com (Vendor Advisory)
- www.cisa.gov (US Government Resource)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.