CVE-2024-45519

Name: CVE-2024-45519
Creator: NVD / NIST
Published: 2024-10-02T22:15:02.77+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.98%

Last modified Jun 17, 2026

CVE-2024-45519 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes allows unauthenticated users to execute commands.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.98% chance of exploitation in the next 30 days.

Description

The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0 Patch 41, 10 before 10.0.9, and 10.1 before 10.1.1 sometimes allows unauthenticated users to execute commands.

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

99.98%

100.0th 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 Oct 24, 2024.

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Synacor	Zimbra Collaboration Suite	< 8.8.15
Synacor	Zimbra Collaboration Suite	>= 10.0.0, < 10.0.9
Synacor	Zimbra Collaboration Suite	8.8.15
Synacor	Zimbra Collaboration Suite	9.0.0
Synacor	Zimbra Collaboration Suite	10.1.0

References

https://wiki.zimbra.com/wiki/Security_CenterRelease Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.9#Security_FixesRelease Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.1#Security_FixesRelease Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P46#Security_FixesRelease Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P41#Security_FixesRelease Notes
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_PolicyNot Applicable
https://blog.projectdiscovery.io/zimbra-remote-code-execution/Exploit
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-45519US Government Resource

Timeline

Published: Oct 2, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-45519?

How severe is CVE-2024-45519?

CVE-2024-45519 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.98% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2024-45519?

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-2024-45519?

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

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Source: NVD / NIST