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 update: 2025-12-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2025-67635 is rated Low Risk (39.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.10%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-67635

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-07 0.16% 0.10% -0.05%
2 2026-05-08 0.26% 0.16% -0.10%
3 2026-04-11 0.26%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-67635

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-67635

GitHub Security Advisory for CVE-2025-67635

GHSA-9p56-p6mw-w8qc · Severity: high · Ecosystem: maven — Jenkins has a Denial of service vulnerability in HTTP-based CLI

OS Trackers for CVE-2025-67635

vendor priority summary link
alpine CVE-2025-67635: 1 source package rows (jenkins); 33 state rows across 3 repos (3.22-community, 3.23-community, edge-community); fixed 0, open 33. https://security.alpinelinux.org/vuln/CVE-2025-67635
redhat medium https://access.redhat.com/security/cve/CVE-2025-67635

Affected software / configurations for CVE-2025-67635

Vendor Product Version Raw CPE
jenkins jenkins < 2.528.3 cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
jenkins jenkins < 2.541 cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

References for CVE-2025-67635

cvelogic Threat Intelligence