CVE-2022-27924

HighActively exploited (CISA KEV)Known to be used in ransomware campaigns

Description

Zimbra Collaboration (aka ZCS) 8.8.15 and 9.0 allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance. These memcache commands becomes unescaped, causing an overwrite of arbitrary cached entries.

SeverityHigh
CVSS7.5
Exploit probability—
ProductSynacor Zimbra Collaboration Suite (ZCS)
PublishedApr 21, 2022
First seenApr 21, 2022
Added to KEVAug 4, 2022
Weakness typeCWE-74Injection

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Aug 25, 2022

Affected products

ProductAffected versionsFixed in
synacor zimbra_collaboration_suite8.8.15, 9.0.0—

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