CVE-2022-27924

CISA KEV RANSOMWARE
ACT NOW Priority: 0.00 BB Relevance: 10/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

Description

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

CISA Known Exploited Vulnerability

Vendor / Product Synacor — Zimbra Collaboration Suite (ZCS)
Date Added 2022-08-04
Remediation Due 2022-08-25
Ransomware Use CONFIRMED
https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24.1#Security_Fixes; https://nvd.nist.gov/vuln/detail/CVE-2022-27924

Weakness Classification (1)

Bug Bounty Relevance

10 / 100
✓ Known exploited (KEV)
✓ High exploitation probability

CVSS Score

Unscored

EPSS — Exploitation Probability

93.91%
Raw Score 0.939080
Percentile 99.8%
Date 2026-10-28

Intelligence Sources

kev ref →