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CVE Tracker

CVE-2022-27924

Synacor Zimbra Collaboration Suite (ZCS) Command Injection Vulnerability

IN CISA KEV

Synacor Zimbra Collaboration Suite (ZCS) allows an attacker to inject memcache commands into a targeted instance which causes an overwrite of arbitrary cached entries.

Vendor
Synacor
Product
Zimbra Collaboration Suite (ZCS)
CVSS
No score recorded (no NVD record loaded for this entry)
Published
Not recorded
NVD modified
Not recorded

CISA KEV

Date added
2022-08-04
Due date
2022-08-25
Ransomware use
Known
Required action
Apply updates per vendor instructions.

EPSS

93.9% chance of exploitation in the next 30 days (percentile 99th)

FIRST EPSS, updated 17 Oct 2026. About EPSS

CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.

Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.