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CRITICAL · 9.8

CVE-2021-42090

An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.

Vulnerability Description

An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
ZammadZammad< 4.1.1

Related Weaknesses (CWE)

CWE-502

References

FAQ

What is CVE-2021-42090?

CVE-2021-42090 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.

How severe is CVE-2021-42090?

CVE-2021-42090 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-42090?

Check the references section above for vendor advisories and patch information. Affected products include: Zammad Zammad.