# CVE-2024-45519: Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability

> CVE-2024-45519: Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability. CVSS 10.0 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2024-45519
Last updated: 2026-02-03T19:27:04Z

- Published: 2024-10-02 00:00 UTC · Updated: 2026-02-03 19:27 UTC · Assigner: mitre
- CVSS: 10.0 (CVSS 3.1) · Severity: Critical · Vector: CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N
- EPSS: 99.9%, 100th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2024-10-03, federal due date 2024-10-24, ransomware use: Unknown

## 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.

## CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

## Affected vendors and products

- Synacor: Zimbra Collaboration Suite (ZCS)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-45519)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2024-45519)
- [https://wiki.zimbra.com/wiki/Security\_Center](https://wiki.zimbra.com/wiki/Security_Center)
- [https://wiki.zimbra.com/wiki/Zimbra\_Releases/10.0.9\#Security\_Fixes](https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.9#Security_Fixes)
- [https://wiki.zimbra.com/wiki/Zimbra\_Releases/10.1.1\#Security\_Fixes](https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.1#Security_Fixes)
- [https://wiki.zimbra.com/wiki/Zimbra\_Releases/8.8.15/P46\#Security\_Fixes](https://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P46#Security_Fixes)
- [https://wiki.zimbra.com/wiki/Zimbra\_Releases/9.0.0/P41\#Security\_Fixes](https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P41#Security_Fixes)
- [https://wiki.zimbra.com/wiki/Zimbra\_Responsible\_Disclosure\_Policy](https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2024-45519 · Markdown: https://rewindex.com/cve/CVE-2024-45519.md · JSON: https://rewindex.com/api/v1/cves/CVE-2024-45519 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:15:10.855Z