Vulnerability in Jenkins
CVE-2021-21671
Jenkins 2.299 and earlier, LTS 2.289.1 and earlier does not invalidate the previous session on login.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.018 · change: +0.000
Affected products
- Jenkins
- Jenkins Project — versions 2.266, LTS 2.277.1, unspecified
Public proof-of-concept exploits
References
- www.jenkins.io/security/advisory/2021-06-30/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/06/30/1 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21671?
- CVE-2021-21671 is a high-severity vulnerability in Jenkins. CVSS score: 7.5/10. Published 2021-06-30.
- How severe is CVE-2021-21671?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-21671 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.