CVE-2021-21634

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

0.81% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 54.2% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Published

2021-03-30 11:10Z5 YR AGO

Last updated

2024-08-03 18:16Z2 YR AGO

Reserved

2021-01-04

Assigning CNA

jenkins

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-522Insufficiently Protected CredentialsClass

Data version

5.1

Document digest

280b2de3739b2307e014e1b4c6f8278300455de5355c4c831be6f6b0e8861bfd

• www.jenkins.iohttps://www.jenkins.io/security/advisory/2021-03-30/#SECURITY-2162x_refsource_CONFIRM
• www.openwall.com[oss-security] 20210330 Multiple vulnerabilities in Jenkins pluginshttp://www.openwall.com/lists/oss-security/2021/03/30/1mailing-listx_refsource_MLIST