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Vulnerability Details :

CVE-2025-34079

Summary
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At-02 Jul, 2025 | 19:27
Updated At-07 Apr, 2026 | 14:09
Rejected At-
Credits

NSClient++ Authenticated Remote Code Execution via ExternalScripts API

An authenticated remote code execution vulnerability exists in NSClient++ version 0.5.2.35 when the web interface and ExternalScripts module are enabled. A remote attacker with the administrator password can authenticate to the web interface (default port 8443), inject arbitrary commands as external scripts via the /settings/query.json API, save the configuration, and trigger the script via the /query/{name} endpoint. The injected commands are executed with SYSTEM privileges, enabling full remote compromise. This capability is an intended feature, but the lack of safeguards or privilege separation makes it risky when exposed to untrusted actors.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:VulnCheck
Assigner Org ID:83251b91-4cc7-4094-a5c7-464a1b83ea10
Published At:02 Jul, 2025 | 19:27
Updated At:07 Apr, 2026 | 14:09
Rejected At:
▼CVE Numbering Authority (CNA)
NSClient++ Authenticated Remote Code Execution via ExternalScripts API

An authenticated remote code execution vulnerability exists in NSClient++ version 0.5.2.35 when the web interface and ExternalScripts module are enabled. A remote attacker with the administrator password can authenticate to the web interface (default port 8443), inject arbitrary commands as external scripts via the /settings/query.json API, save the configuration, and trigger the script via the /query/{name} endpoint. The injected commands are executed with SYSTEM privileges, enabling full remote compromise. This capability is an intended feature, but the lack of safeguards or privilege separation makes it risky when exposed to untrusted actors.

Affected Products
Vendor
NSClient++
Product
NSClient++
Modules
  • ExternalScripts
  • /settings/query.json
  • /query/{name}
Platforms
  • Windows
  • 64 bit
Default Status
unaffected
Versions
Affected
  • 0.5.2.35
Problem Types
TypeCWE IDDescription
CWECWE-94CWE-94 Improper Control of Generation of Code ('Code Injection')
CWECWE-306CWE-306 Missing Authentication for Critical Function
Type: CWE
CWE ID: CWE-94
Description: CWE-94 Improper Control of Generation of Code ('Code Injection')
Type: CWE
CWE ID: CWE-306
Description: CWE-306 Missing Authentication for Critical Function
Metrics
VersionBase scoreBase severityVector
4.07.5HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 4.0
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-242CAPEC-242 Code Injection
CAPEC-233CAPEC-233 Privilege Escalation
CAPEC ID: CAPEC-242
Description: CAPEC-242 Code Injection
CAPEC ID: CAPEC-233
Description: CAPEC-233 Privilege Escalation
Solutions

Configurations

Workarounds

Exploits

Credits

finder
kindredsec
finder
Yann Castel
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/nscp_authenticated_rce.rb
exploit
https://www.exploit-db.com/exploits/48360
exploit
https://vulncheck.com/advisories/nsclient-localtoremote-system-compromise
third-party-advisory
Hyperlink: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/nscp_authenticated_rce.rb
Resource:
exploit
Hyperlink: https://www.exploit-db.com/exploits/48360
Resource:
exploit
Hyperlink: https://vulncheck.com/advisories/nsclient-localtoremote-system-compromise
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:disclosure@vulncheck.com
Published At:02 Jul, 2025 | 20:15
Updated At:16 Sep, 2025 | 19:53

An authenticated remote code execution vulnerability exists in NSClient++ version 0.5.2.35 when the web interface and ExternalScripts module are enabled. A remote attacker with the administrator password can authenticate to the web interface (default port 8443), inject arbitrary commands as external scripts via the /settings/query.json API, save the configuration, and trigger the script via the /query/{name} endpoint. The injected commands are executed with SYSTEM privileges, enabling full remote compromise. This capability is an intended feature, but the lack of safeguards or privilege separation makes it risky when exposed to untrusted actors.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.07.5HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CPE Matches

nsclient
nsclient
>>nsclient\+\+>>0.5.2.35
cpe:2.3:a:nsclient:nsclient\+\+:0.5.2.35:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-94Secondarydisclosure@vulncheck.com
CWE-306Secondarydisclosure@vulncheck.com
CWE-94Primarynvd@nist.gov
CWE ID: CWE-94
Type: Secondary
Source: disclosure@vulncheck.com
CWE ID: CWE-306
Type: Secondary
Source: disclosure@vulncheck.com
CWE ID: CWE-94
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/nscp_authenticated_rce.rbdisclosure@vulncheck.com
Exploit
https://vulncheck.com/advisories/nsclient-localtoremote-system-compromisedisclosure@vulncheck.com
Exploit
Third Party Advisory
https://www.exploit-db.com/exploits/48360disclosure@vulncheck.com
Exploit
VDB Entry
Hyperlink: https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/nscp_authenticated_rce.rb
Source: disclosure@vulncheck.com
Resource:
Exploit
Hyperlink: https://vulncheck.com/advisories/nsclient-localtoremote-system-compromise
Source: disclosure@vulncheck.com
Resource:
Exploit
Third Party Advisory
Hyperlink: https://www.exploit-db.com/exploits/48360
Source: disclosure@vulncheck.com
Resource:
Exploit
VDB Entry

Change History

0
Information is not available yet

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