CVE-2022-41352

Name: CVE-2022-41352
Creator: NVD / NIST
Published: 2022-09-26T02:15:10.733+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 95.48%

Last modified Jun 17, 2026

CVE-2022-41352 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. CISA has confirmed active exploitation in the wild. EPSS estimates a 95.48% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

95.48%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Nov 10, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Synacor	Zimbra Collaboration Suite	9.0.0
Synacor	Zimbra Collaboration Suite	8.8.15

References

http://packetstormsecurity.com/files/169458/Zimbra-Collaboration-Suite-TAR-Path-Traversal.htmlExploit, Third Party Advisory, VDB Entry
https://forums.zimbra.org/viewtopic.php?t=71153&p=306532Mitigation, Vendor Advisory
https://wiki.zimbra.com/wiki/Security_CenterPatch, Release Notes, Vendor Advisory
https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
https://www.secpod.com/blog/unpatched-rce-bug-in-zimbra-collaboration-suite-exploited-in-wild/Third Party Advisory
http://packetstormsecurity.com/files/169458/Zimbra-Collaboration-Suite-TAR-Path-Traversal.htmlExploit, Third Party Advisory, VDB Entry
https://forums.zimbra.org/viewtopic.php?t=71153&p=306532Mitigation, Vendor Advisory
https://wiki.zimbra.com/wiki/Security_CenterPatch, Release Notes, Vendor Advisory
https://wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesVendor Advisory
https://www.secpod.com/blog/unpatched-rce-bug-in-zimbra-collaboration-suite-exploited-in-wild/Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41352US Government Resource

Timeline

Published: Sep 26, 2022
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2022-41352?

How severe is CVE-2022-41352?

CVE-2022-41352 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 95.48% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2022-41352?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-41352?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST