What is CVE-2025-67635?

CVE-2025-67635 is a high-severity vulnerability in Jenkins, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2025-12-10.

How severe is CVE-2025-67635?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Jenkins

CVE-2025-67635

Jenkins 2.540 and earlier, LTS 2.528.2 and earlier does not properly close HTTP-based CLI connections when the connection stream becomes corrupted, allowing unauthenticated attackers to cause a denial of service.

Published 2025-12-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (44.6th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Jenkins
Jenkins Project — versions 2.541, 2.528.3

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

www.jenkins.io/security/advisory/2025-12-10/ (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2025-67635?: CVE-2025-67635 is a high-severity vulnerability in Jenkins, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2025-12-10.
How severe is CVE-2025-67635?: High severity. CVSS v3 base score is 7.5 out of 10.