CVE-2022-27925

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) contains flaw in the mboximport functionality, allowing an authenticated attacker to upload arbitrary files to perform remote code execution. This vulnerability was chained with CVE-2022-37042 which allows for unauthenticated remote code execution.

CISA Known Exploited Vulnerability

Vendor / Product Synacor — Zimbra Collaboration Suite (ZCS)
Date Added 2022-08-11
Remediation Due 2022-09-01
Ransomware Use CONFIRMED
https://blog.zimbra.com/2022/08/authentication-bypass-in-mailboximportservlet-vulnerability/; https://nvd.nist.gov/vuln/detail/CVE-2022-27925

Weakness Classification (1)

Bug Bounty Relevance

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

CVSS Score

Unscored

EPSS — Exploitation Probability

98.68%
Raw Score 0.986760
Percentile 99.9%
Date 2026-10-28

Intelligence Sources

kev ref →