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CVE-2024-45519

Synacor Zimbra Collaboration Suite (ZCS) Command Execution

10.0 CRITICALActively exploited (CISA KEV)Public exploitEPSS 99.9%
  1. Published2 Oct 2024
  2. Added to CISA KEV3 Oct 2024
  3. Remediation due24 Oct 2024
Actively exploited (CISA KEV)

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

Added to KEV: 3 Oct 2024Federal remediation due: 24 Oct 2024

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Synacor Zimbra Collaboration Suite≥ 10.0.0 < 10.0.9 · < 8.8.15 · 10.1.0 · 8.8.15

Remediation

Fixed in
Synacor Zimbra Collaboration Suite≥ 10.0.9

References

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Frequently asked

Is CVE-2024-45519 being actively exploited?

Yes. CVE-2024-45519 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Oct 2024.

How severe is CVE-2024-45519?

CVE-2024-45519 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 99.9% probability of exploitation.

Which products are affected by CVE-2024-45519?

Affected products include Synacor Zimbra Collaboration Suite.

How do I fix CVE-2024-45519?

Upgrade affected software to a fixed version, for example Synacor Zimbra Collaboration Suite 10.0.9 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-45519 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.