CVE-2021-42090

—

CVSS 3.1

9.8 critical

EPSS

2%p83

Published

Oct 7, 2021 (Oct 7, 2021)

Modified

Jun 17, 2026

Description

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

Vendors: zammad
Products: zammad
Weakness: CWE-502
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (2.3%)

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