How severe is CVE-2021-21641?

CVE-2021-21641 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-21641 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21641?

CVE-2021-21641 affects Jenkins Promoted Builds. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21641?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-21641 published?

CVE-2021-21641 was published on 2021-04-07 and last updated on 2026-06-17.

CVE-2021-21641

CVE-2021-21641 is a medium-severity vulnerability in Jenkins Promoted Builds with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Jenkins Promoted Builds
Published: 2021-04-07
Last modified: 2026-06-17

Description

A cross-site request forgery (CSRF) vulnerability in Jenkins promoted builds Plugin 3.9 and earlier allows attackers to to promote builds.

Frequently asked questions

What is CVE-2021-21641?: A cross-site request forgery (CSRF) vulnerability in Jenkins promoted builds Plugin 3.9 and earlier allows attackers to to promote builds.
How severe is CVE-2021-21641?: CVE-2021-21641 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-21641 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21641?: CVE-2021-21641 affects Jenkins Promoted Builds. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21641?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-21641 published?: CVE-2021-21641 was published on 2021-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jenkins:promoted_builds:*:*:*:*:*:jenkins:*:*

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