Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability
n/a — n/a
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.
10.0
99.9%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Published
- Oct 2, 2024
- Modified
- Jun 17, 2026
- Added to KEV
- Oct 3, 2024
- Federal patch due
- Oct 24, 2024
CISA required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Weakness classification
Affected packages
Proof-of-concept & exploitation references
4 foundWeaponization
Public repositories whose name or description references CVE-2024-45519, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit - cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
- Chocapikk/CVE-2024-45519★ 139
Zimbra - Remote Command Execution (CVE-2024-45519)
updated Aug 28, 2026
- p33d/CVE-2024-45519★ 42
updated Mar 5, 2026
- sec13b/CVE-2024-45519★ 0
Zimbra CVE-2024-45519
updated Mar 8, 2025
- lionels-cyber/CVE-2024-45519-Zimbra-Real-Fix★ 0
Zimbra CVE-2024-45519 real fix - Official patch is incomplete
updated Aug 15, 2026
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2024-45519?
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.
How severe is CVE-2024-45519?
CVE-2024-45519 has a CVSS base score of 10.0 out of 10 (CVSS 3.1).
Is CVE-2024-45519 actively exploited in the wild?
Yes. CVE-2024-45519 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Oct 3, 2024, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2024-45519?
99.9% - meaning FIRST.org's EPSS model estimates a 99.9% probability this vulnerability will be exploited in the wild within 30 days (100% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2024-45519?
We found 4 public GitHub repositories referencing CVE-2024-45519, though none matched a known Nuclei template or Metasploit module at last check. Review each one before relying on it - see the proof-of-concept section above.
What type of vulnerability is CVE-2024-45519?
CVE-2024-45519 is classified under CWE-78 (CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')).
Cross-checked against
Impactr finds and proves whether CVE-2024-45519 - or flaws like it - are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.
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