CVE-2025-41368

Multiple vulnerabilities in Small HTTP server by Smallsrv

Published Mar 26, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
Problem in the Small HTTP Server v3.06.36 service. An authenticated path traversal vulnerability in '/' allows remote users to bypass the intended restrictions of SecurityManager and display any file if they have the appropriate permissions outside the document root configured on the server.

Remediation

Vendor Solution

The vulnerability has been fixed in version V3.06.38.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Smallsrv small Http Server
CPEs cpe:2.3:a:smallsrv:small_http_server:*:*:*:*:*:*:*:*
Vendors & Products Smallsrv small Http Server
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-428
Type Values Removed Values Added
Description Vulnerability related to an unquoted service path in Small HTTP Server 3.06.36, specifically affecting the executable located at 'C:\Program Files (x86)\shttps_mg\http.exe service'. This misconfiguration allows a local attacker to place a malicious executable with the same name in a higher priority directory, causing the service to execute the malicious file instead of the legitimate one. Exploiting this flaw could allow arbitrary code execution, unauthorized access to the system, or service disruption. To mitigate the risk, the service path must be properly quoted, and systems must be kept up to date with security patches, while restricting physical and network access. Problem in the Small HTTP Server v3.06.36 service. An authenticated path traversal vulnerability in '/' allows remote users to bypass the intended restrictions of SecurityManager and display any file if they have the appropriate permissions outside the document root configured on the server.
Weaknesses CWE-22
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Type Values Removed Values Added
Description Vulnerability related to an unquoted service path in Small HTTP Server 3.06.36, specifically affecting the executable located at 'C:\Program Files (x86)\shttps_mg\http.exe service'. This misconfiguration allows a local attacker to place a malicious executable with the same name in a higher priority directory, causing the service to execute the malicious file instead of the legitimate one. Exploiting this flaw could allow arbitrary code execution, unauthorized access to the system, or service disruption. To mitigate the risk, the service path must be properly quoted, and systems must be kept up to date with security patches, while restricting physical and network access.
Title Multiple vulnerabilities in Small HTTP server by Smallsrv
First Time appeared Smallsrv
Smallsrv small Http
Weaknesses CWE-428
CPEs cpe:2.3:a:smallsrv:small_http:3.06.36:*:*:*:*:*:*:*
Vendors & Products Smallsrv
Smallsrv small Http
References
Metrics cvssV4_0

{'score': 8.5, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
INCIBE
Published
Updated
Mar 26, 2026, 1:40 PM
Reserved
Apr 16, 2025, 9:57 AM
Status
Analyzed
Published
Mar 26, 2026, 12:16 PM
Modified
Jun 17, 2026, 9:22 AM