CVE-2021-42090
CRITICALZammad < 4.1.1 - Insecure Deserialization
Title source: ruleDescription
An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.
Scores
CVSS v3
9.8
EPSS
0.0493
EPSS Percentile
89.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Classification
CWE
CWE-502
Status
published
Affected Products (1)
zammad/zammad
< 4.1.1
Timeline
Published
Oct 07, 2021
Tracked Since
Feb 18, 2026