Simple Web Server 2.2 rc2 contains a stack-based buffer overflow vulnerability in its handling of the Connection HTTP header. When a remote attacker sends an overly long string in this header, the server uses vsprintf() without proper bounds checking, leading to a buffer overflow on the stack. This flaw allows remote attackers to execute arbitrary code with the privileges of the web server process. The vulnerability is triggered before authentication.
History

Tue, 12 Aug 2025 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Pmsoftware
Pmsoftware simple Web Server
Vendors & Products Pmsoftware
Pmsoftware simple Web Server

Fri, 08 Aug 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 Aug 2025 18:30:00 +0000

Type Values Removed Values Added
Description Simple Web Server 2.2 rc2 contains a stack-based buffer overflow vulnerability in its handling of the Connection HTTP header. When a remote attacker sends an overly long string in this header, the server uses vsprintf() without proper bounds checking, leading to a buffer overflow on the stack. This flaw allows remote attackers to execute arbitrary code with the privileges of the web server process. The vulnerability is triggered before authentication.
Title Simple Web Server Connection Header Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2025-08-08T18:12:53.677Z

Updated: 2025-08-08T18:48:37.339Z

Reserved: 2025-08-08T16:25:11.586Z

Link: CVE-2012-10053

cve-icon Vulnrichment

Updated: 2025-08-08T18:48:25.433Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-08T19:15:35.637

Modified: 2025-08-08T20:30:18.180

Link: CVE-2012-10053

cve-icon Redhat

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