CVE-2025-59518Network attack vector

Administrative command execution via unlocalized Safe-jail variable

Published Sep 17, 2025 · Updated Sep 17, 2025

OS command injection in LemonLDAP::NG before 2.16.7 and 2.17 through 2.21 before 2.21.3 allows remote authenticated users to execute server commands. The Safe-jail rule evaluator passes administrator-controlled Perl expressions to jail_reval without localizing the special $_ variable, leaving outer interpreter state reachable during evaluation. Exploitation requires administrative permission to edit an evaluated rule; a successful escape runs commands under the service account.

CVSS severity8.0
High
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in LemonLDAP::NG before 2.16.7 and 2.17 through 2.21 before 2.21.3 allows remote authenticated users to execute server commands. The Safe-jail rule evaluator passes administrator-controlled Perl expressions to jail_reval without localizing the special $_ variable, leaving outer interpreter state reachable during evaluation. Exploitation requires administrative permission to edit an evaluated rule; a successful escape runs commands under the service account.

The record

CVE
CVE-2025-59518
Published
Sep 17, 2025
Updated
Sep 17, 2025
Vendor
LemonLDAP::NG
Product
LemonLDAP::NG
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2025Record 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 <2.16.7
  2. Affected versionversion=2.17.0 <2.21.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

LemonLDAP::NG · LemonLDAP::NGversion=0 <2.16.7; version=2.17.0 <2.21.3

Published CVSS scores

8.0MITRECVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

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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