CVE-2023-41939Network attack vector

Privilege retention via unchecked permission enablement

Published Sep 6, 2023 · Updated Sep 26, 2024

Improper permission preservation in Jenkins SSH2 Easy Plugin 1.4 and earlier allows remote authenticated users to retain disabled privileges. The permission-granting path applies configured assignments without checking whether each permission remains enabled. A previously assigned optional permission, such as Overall/Manage, must later be disabled without resaving the permission configuration, leaving access to otherwise restricted Jenkins functionality.

CVSS severity8.8
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permission preservation in Jenkins SSH2 Easy Plugin 1.4 and earlier allows remote authenticated users to retain disabled privileges. The permission-granting path applies configured assignments without checking whether each permission remains enabled. A previously assigned optional permission, such as Overall/Manage, must later be disabled without resaving the permission configuration, leaving access to otherwise restricted Jenkins functionality.

The record

CVE
CVE-2023-41939
Published
Sep 6, 2023
Updated
Sep 26, 2024
Vendor
Jenkins Project
Product
SSH2 Easy
Classifications
CWE-281, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Jenkins Project · SSH2 Easyversion=0 <=1.4

Published CVSS scores

8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-281Improper Preservation of Permissions
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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