Path Traversal in Synacor Zimbra Collaboration Suite
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.919 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Synacor Zimbra_collaboration_suite — versions 8.8.15, 9.0.0
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Known ransomware campaign use: yes.
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Patch, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2022-37042?
- CVE-2022-37042 is a critical-severity vulnerability in Synacor Zimbra Collaboration Suite, classified under Path Traversal. CVSS score: 9.8/10. Published 2022-08-12.
- How severe is CVE-2022-37042?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-37042 known to be exploited?
- Yes. CVE-2022-37042 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-08-11), indicating it is being actively exploited. 34 public proof-of-concept repositories are indexed.