CVE-2025-9648— Denial of Service in CivetWeb
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-9648
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Denial of Service in CivetWeb
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the CivetWeb library's function mg_handle_form_request allows remote attackers to trigger a denial of service (DoS) condition. By sending a specially crafted HTTP POST request containing a null byte in the payload, the server enters an infinite loop during form data parsing. Multiple malicious requests will result in complete CPU exhaustion and render the service unresponsive to further requests. This issue was fixed in commit 782e189. This issue affects only the library, standalone executable pre-built by vendor is not affected.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
空字节或NULL字符转义处理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
CivetWeb 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CivetWeb是Civetweb开源的一个易于使用、功能强大、可嵌入 C/C++ 的 Web 服务器，具有可选的 CGI、SSL 和 Lua 支持。 CivetWeb存在安全漏洞，该漏洞源于mg_handle_form_request函数在解析包含空字节的特制HTTP POST请求时进入无限循环，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-9648
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-9648
请登录查看更多情报信息。
IV. Related Vulnerabilities
V. Comments for CVE-2025-9648
No comments yet