Is It On KEV?

Synacor Zimbra Collaboration Suite (ZCS)

YES - ON THE CISA KEV LIST
CVE-2024-45519

Synacor Zimbra Collaboration Suite (ZCS) Command Execution Vulnerability

CISA catalog due date2024-10-24
overdue since 2024-10-24
EPSS exploit probability (next 30 days)99.9% · 100percentile
From CVE publication to KEV listing1 days (2024-10-02 → 2024-10-03)
Remediation window (KEV listing to due date)21 days
Days on the KEV list769 days
Date added to KEV2024-10-03
Known ransomware campaign useUnknown
VendorSynacor
ProductZimbra Collaboration Suite (ZCS)
Weaknesses (CWE)CWE-284

Synacor: 19 entries (1.1% of all KEV entries are from this vendor); 5 added in 2026.

BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.

Your BOD 26-04 window (SSVC tier helper)

Your remediation window ends:

Description

Synacor Zimbra Collaboration Suite (ZCS) contains an unspecified vulnerability in the postjournal service that may allow an unauthenticated user to execute commands.

Required action (CISA)

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

Notes

https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories ; https://nvd.nist.gov/vuln/detail/CVE-2024-45519

References

Other KEV entries for this vendor: Synacor

Synacor - Vendors with KEV entries

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