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Servers and applications

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: CISA added it to its Known Exploited Vulnerabilities catalog on 11 Aug 2022.

Severity
Critical 9.8
Published
12 Aug 2022
Last changed
4 Aug 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Zimbra CollaborationServers and applications · cpe:a:synacor:zimbra_collaboration_suite
  • Version 9.0.0-p25
  • Version 9.0.0-p24.1
  • Version 9.0.0-p24
  • Version 9.0.0-p23
All 61 release lines
  • Version 8.8.15
  • Version 8.8.15-p1
  • Version 8.8.15-p2
  • Version 8.8.15-p3
  • Version 8.8.15-p4
  • Version 8.8.15-p5
  • Version 8.8.15-p6
  • Version 8.8.15-p7
  • Version 8.8.15-p8
  • Version 8.8.15-p9
  • Version 8.8.15-p10
  • Version 8.8.15-p11
  • Version 8.8.15-p12
  • Version 8.8.15-p13
  • Version 8.8.15-p14
  • Version 8.8.15-p15
  • Version 8.8.15-p16
  • Version 8.8.15-p17
  • Version 8.8.15-p18
  • Version 8.8.15-p19
  • Version 8.8.15-p20
  • Version 8.8.15-p21
  • Version 8.8.15-p22
  • Version 8.8.15-p23
  • Version 8.8.15-p24
  • Version 8.8.15-p25
  • Version 8.8.15-p26
  • Version 8.8.15-p27
  • Version 8.8.15-p28
  • Version 8.8.15-p29
  • Version 8.8.15-p30
  • Version 8.8.15-p31
  • Version 8.8.15-p31.1
  • Version 8.8.15-p32
  • Version 9.0.0
  • Version 9.0.0-p1
  • Version 9.0.0-p2
  • Version 9.0.0-p3
  • Version 9.0.0-p4
  • Version 9.0.0-p5
  • Version 9.0.0-p6
  • Version 9.0.0-p7
  • Version 9.0.0-p8
  • Version 9.0.0-p9
  • Version 9.0.0-p10
  • Version 9.0.0-p11
  • Version 9.0.0-p12
  • Version 9.0.0-p13
  • Version 9.0.0-p14
  • Version 9.0.0-p15
  • Version 9.0.0-p16
  • Version 9.0.0-p17
  • Version 9.0.0-p18
  • Version 9.0.0-p19
  • Version 9.0.0-p20
  • Version 9.0.0-p21
  • Version 9.0.0-p22
  • Version 9.0.0-p23
  • Version 9.0.0-p24
  • Version 9.0.0-p24.1
  • Version 9.0.0-p25

Known exploited

CISA name
Synacor Zimbra Collaboration Suite (ZCS) Authentication Bypass Vulnerability
Required action
Apply updates per vendor instructions.
Due for US agencies
1 Sept 2022
Used in ransomware
Yes, known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-37042
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-37042