PT-2025-50353 · Cloudbees+2 · Jenkins+1

Camilo Vera Vidales · Published 2025-12-10 · Updated 2025-12-23 · CVE-2025-67635

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Jenkins versions 2.540 and earlier Jenkins LTS versions 2.528.2 and earlier

Description Jenkins does not properly close HTTP-based CLI connections when the connection stream becomes corrupted. This can allow unauthenticated attackers to cause a denial of service.

Recommendations Update Jenkins to a version later than 2.540. Update Jenkins LTS to a version later than 2.528.2.

Fix

DoS

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

BDU:2025-15959

BIT-JENKINS-2025-67635

CVE-2025-67635

GHSA-9P56-P6MW-W8QC

Affected Products

Jenkins

Red Os

References · 17

• http://repo.red-soft.ru/redos/8.0/x86_64/updates · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-15959 · Security Note
• https://jenkins.io/security/advisory/2025-12-10/#SECURITY-3630 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-67635 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-67635 · Security Note
• https://osv.dev/vulnerability/GHSA-9p56-p6mw-w8qc · Vendor Advisory
• https://github.com/jenkinsci/jenkins · Note
• https://github.com/jenkinsci/jenkins/commit/efa1816322026f2b9235a27eee814bcc7ba0a764 · Note
• https://t.me/CVEtracker/39376 · Telegram Post
• https://reddit.com/r/cybersecurity/comments/1pozaye/cve_blog_feedback · Reddit Post
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti-red-os-8-0/uyazvimost-jenkins-cve-2025-67635-8.0 · Note
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/uyazvimost-jenkins-cve-2025-67635-7.3 · Note
• https://twitter.com/CVEnew/status/2000248629609853380 · Twitter Post
• https://i.redd.it/wksgv685cd7g1.png · Reddit Post
• https://fluidattacks.com/blog/unauth-dos-in-jenkins-cli · Note