CVE-2024-45519
Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability
Synacor Zimbra Collaboration Suite (ZCS)Applications & CMS
CVSS
10.0CriticalExploit odds (EPSS)99.9%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Public exploit code and templates 1
- Scanner templateZimbra Collaboration Suite < 9.0.0 - Remote Code ExecutionNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
Synacor Zimbra Collaboration Suite (ZCS) contains an unspecified vulnerability in the postjournal service that may allow an unauthenticated user to execute commands.
Text from CVE List
Affected versions 1
- n/aaffected: n/aCVE List
References 10
- wiki.zimbra.com/wiki/Zimbra_Security_AdvisoriesAdvisoryvia CISA KEV
- wiki.zimbra.com/wiki/Security_CenterAdvisoryvia CVE List
- wiki.zimbra.com/wiki/Zimbra_Releases/10.1.1#Security_FixesAdvisoryvia CVE List
- wiki.zimbra.com/wiki/Zimbra_Releases/10.0.9#Security_FixesAdvisoryvia CVE List
- wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P41#Security_FixesAdvisoryvia CVE List
- wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P46#Security_FixesAdvisoryvia CVE List
- blog.projectdiscovery.io/zimbra-remote-code-execution/Exploitvia CVE List
- nvd.nist.gov/vuln/detail/CVE-2024-45519Referencevia CISA KEV
- wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_PolicyReferencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-45519Referencevia CVE List