How severe is CVE-2025-32755?

CVE-2025-32755 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-32755 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-32755?

CVE-2025-32755 affects Jenkins Ssh-slave. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-32755?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-32755 have an EU (EUVD) identifier?

Yes. CVE-2025-32755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10673.

When was CVE-2025-32755 published?

CVE-2025-32755 was published on 2025-04-10 and last updated on 2026-06-17.

CVE-2025-32755

CVE-2025-32755 is a critical-severity vulnerability in Jenkins Ssh-slave with a CVSS 3.x base score of 9.1. 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-338.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-10673
Weakness: CWE-338
Affected product: Jenkins Ssh-slave
Published: 2025-04-10
Last modified: 2026-06-17

Description

In jenkins/ssh-slave Docker images based on Debian, SSH host keys are generated on image creation for images based on Debian, causing all containers based on images of the same version use the same SSH host keys, allowing attackers able to insert themselves into the network path between the SSH client (typically the Jenkins controller) and SSH build agent to impersonate the latter.

Frequently asked questions

What is CVE-2025-32755?: In jenkins/ssh-slave Docker images based on Debian, SSH host keys are generated on image creation for images based on Debian, causing all containers based on images of the same version use the same SSH host keys, allowing attackers able to insert themselves into the network path between the SSH client (typically the Jenkins controller) and SSH build agent to impersonate the latter.
How severe is CVE-2025-32755?: CVE-2025-32755 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-32755 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-32755?: CVE-2025-32755 affects Jenkins Ssh-slave. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-32755?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-32755 have an EU (EUVD) identifier?: Yes. CVE-2025-32755 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-10673.
When was CVE-2025-32755 published?: CVE-2025-32755 was published on 2025-04-10 and last updated on 2026-06-17.

References

https://www.jenkins.io/security/advisory/2025-04-10/#SECURITY-3565

Affected products (1)

cpe:2.3:a:jenkins:ssh-slave:*:*:*:*:*:docker:*:*

Other CWE-338 vulnerabilities

CVE-2026-56141 — Critical (CVSS 9.8): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429 account…
CVE-2026-3256 — Critical (CVSS 9.8): HTTP::Session versions before 0.54 for Perl defaults to using insecurely generated session ids. HTTP::Session defaults…
CVE-2025-15604 — Critical (CVSS 9.8): Amon2 versions before 6.17 for Perl use an insecure random_string implementation for security functions. In versions…
CVE-2025-40926 — Critical (CVSS 9.8): Plack::Middleware::Session::Simple versions before 0.05 for Perl generates session ids insecurely. The default session…
CVE-2026-2439 — Critical (CVSS 9.8): Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generate_session_id…
CVE-2025-15578 — Critical (CVSS 9.8): Maypole versions from 2.10 through 2.13 for Perl generates session ids insecurely. The session id is seeded with the…

Browse all CWE-338 vulnerabilities →