CVE-2024-45519
The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2024-45519- CVSS 3.1
- 10.0 Critical
CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N - Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2024-41520
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.
- Record
EUVD-2024-41520- CVSS 3.1
- 10.0 Critical
CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fr4c-ch83-r968
The postjournal service in Zimbra Collaboration (ZCS) before 8.8.15 Patch 46, 9 before 9.0.0...
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.
- Record
GHSA-fr4c-ch83-r968- CVSS 3.1
- 10.0 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-78, CWE-284, CWE-863
- Updated
- 2026-11-02
CISA KEV No score
Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability
Synacor Zimbra Collaboration Suite (ZCS) contains an unspecified vulnerability in the postjournal service that may allow an unauthenticated user to execute commands.
- Record
CVE-2024-45519- Weakness
- CWE-284
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2024-45519- CVSS 3.1
- 10.0 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2024-45519- CVSS 3.1
- 10.0 Critical
CVSS:3.1/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:C/UI:N - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | p33d/CVE-2024-45519 | 2024-09-28 |
| PoC in GitHub | Chocapikk/CVE-2024-45519 | 2024-10-05 |
| PoC in GitHub | sec13b/CVE-2024-45519 | 2025-03-08 |
| PoC in GitHub | lionels-cyber/CVE-2024-45519-Zimbra-Real-Fix | 2026-08-15 |
| Nuclei | Zimbra Collaboration Suite < 9.0.0 - Remote Code Execution |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, Nuclei, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-45519 is a critical vulnerability (CVSS 10.0) in Synacor Zimbra Collaboration Suite (zcs), published October 2, 2024. CISA lists it as known to be exploited, since October 3, 2024. EUVD reports exploitation since October 3, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 99.9%, the 99th percentile. No source names a fixed version.
References
wiki.zimbra.com/wiki/Security_Center