01 Record
CVE-2021-42090
An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
An issue was discovered in Zammad before 4.1.1. The Form functionality allows remote code execution because deserialization is mishandled.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.32% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 83.0% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-10-07 19:35Z5 YR AGO
- Last updated
- 2024-08-04 03:22Z2 YR AGO
- Reserved
- 2021-10-07
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-502Deserialization of Untrusted DataBase
- Data version
- 5.1
- Document digest
- a7698edf9e174aa7f61fa888c8834238ac9e84446fdd09ede967fe005784c417
05 Affected products
VendorProductVersionsPlatforms