---
id: CVE-2022-41352
title: An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0
summary: >-
  An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An
  attacker can upload arbitrary files through amavis via a cpio loophole
  (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to
  incorrect access to …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
vendor: synacor
product: zimbra_collaboration_suite
affected:
  - zimbra_collaboration_suite = 9.0.0
  - zimbra_collaboration_suite = 8.8.15
published: '2022-09-26'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T04:17:37.410'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-41352'
references:
  - url: >-
      http://packetstormsecurity.com/files/169458/Zimbra-Collaboration-Suite-TAR-Path-Traversal.html
    label: cve@mitre.org
  - url: 'https://forums.zimbra.org/viewtopic.php?t=71153&p=306532'
    label: cve@mitre.org
  - url: 'https://wiki.zimbra.com/wiki/Security_Center'
    label: cve@mitre.org
  - url: 'https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories'
    label: cve@mitre.org
  - url: >-
      https://www.secpod.com/blog/unpatched-rce-bug-in-zimbra-collaboration-suite-exploited-in-wild/
    label: cve@mitre.org
  - url: >-
      http://packetstormsecurity.com/files/169458/Zimbra-Collaboration-Suite-TAR-Path-Traversal.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://forums.zimbra.org/viewtopic.php?t=71153&p=306532'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://wiki.zimbra.com/wiki/Security_Center'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.secpod.com/blog/unpatched-rce-bug-in-zimbra-collaboration-suite-exploited-in-wild/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41352
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - in-the-wild
  - exploit-available
  - kev
exploited: true
exploitAvailable: true
ssvc:
  exploitation: active
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2022-10-07T00:00:00+00:00'
ingestedAt: '2026-09-13T03:15:14.507Z'
epss: 0.95478
epssPercentile: 0.99868
kev: true
kevDateAdded: '2022-10-20'
kevDueDate: '2022-11-10'
kevRansomware: true
exploits:
  github: 3
  githubRepos:
    - 'https://github.com/segfault-it/cve-2022-41352'
    - 'https://github.com/Cr4ckC4t/cve-2022-41352-zimbra-rce'
    - 'https://github.com/dafrax/cve-2022-41352-zimbra-rce'
  metasploit:
    - exploit/linux/http/zimbra_cpio_cve_2022_41352
  nuclei:
    - CVE-2022-41352
  checkedAt: '2026-09-23T07:13:24.233Z'
---

## Overview

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0. An attacker can upload arbitrary files through amavis via a cpio loophole (extraction to /opt/zimbra/jetty/webapps/zimbra/public) that can lead to incorrect access to any other user accounts. Zimbra recommends pax over cpio. Also, pax is in the prerequisites of Zimbra on Ubuntu; however, pax is no longer part of a default Red Hat installation after RHEL 6 (or CentOS 6). Once pax is installed, amavis automatically prefers it over cpio.

## Affected

- `zimbra_collaboration_suite = 9.0.0`
- `zimbra_collaboration_suite = 8.8.15`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.