CVE-2022-37042Known exploitationPublic exploitNetwork attack vector

Unauthenticated remote code execution via ZIP path traversal

Published Aug 11, 2022 · Updated Aug 4, 2026

Authentication bypass in Zimbra Collaboration Suite 8.8.15 and 9.0 allows remote attackers to upload files and execute code through the mboximport endpoint. MailboxImportServlet accepts a ZIP archive without requiring an authtoken and extracts entries without constraining paths, enabling directory traversal and arbitrary file placement. Exploitation requires network access to the exposed service but no credentials or user interaction, and can compromise confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability92.07%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Contact us

Summary

What happened

Authentication bypass in Zimbra Collaboration Suite 8.8.15 and 9.0 allows remote attackers to upload files and execute code through the mboximport endpoint. MailboxImportServlet accepts a ZIP archive without requiring an authtoken and extracts entries without constraining paths, enabling directory traversal and arbitrary file placement. Exploitation requires network access to the exposed service but no credentials or user interaction, and can compromise confidentiality, integrity, and availability.

The record

CVE
CVE-2022-37042
Published
Aug 11, 2022
Updated
Aug 4, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 10, 2022Exploitation reportedCISA catalog active exploitation listing
  2. Aug 11, 2022CVE publishedPublication date reported by the CVE source.
  3. Aug 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 20268
Sep 23, 202618
Sep 24, 20267
Sep 25, 20269
Sep 26, 20266
Sep 27, 202612
Sep 28, 202623
Latest reporting daySep 28, 2026
Latest daily unique IPs23
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Contact us