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CVE-2025-66200— Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo

Quick assessment

Affected
Apache Software Foundation Apache HTTP Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.7版本至2.4.65版本存在安全漏洞，该漏洞源于mod_userdir+suexec绕过，可能导致CGI脚本以意外用户身份运行。

AI Predicted 8.4 Difficulty: Easy EPSS 0.65% · P49
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I. Basic Information for CVE-2025-66200

Vulnerability Information
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Vulnerability Title
Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo
Source: CVE Program / CVE List V5
Vulnerability Description
mod_userdir+suexec bypass via AllowOverride FileInfo vulnerability in Apache HTTP Server. Users with access to use the RequestHeader directive in htaccess can cause some CGI scripts to run under an unexpected userid. This issue affects Apache HTTP Server: from 2.4.7 through 2.4.65. Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apache HTTP Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.7版本至2.4.65版本存在安全漏洞，该漏洞源于mod_userdir+suexec绕过，可能导致CGI脚本以意外用户身份运行。
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

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache HTTP Server 2.4.7 ~ 2.4.65 -

II. Public POCs for CVE-2025-66200

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III. Intelligence Information for CVE-2025-66200

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Vendor Advisories for CVE-2025-66200 (1)

Same Patch Batch · Apache Software Foundation · 2025-12-05 · 5 CVEs total

CVE-2025-58098 Apache HTTP Server: Server Side Includes adds query string to #exec cmd=...
CVE-2025-65082 Apache HTTP Server: CGI environment variable override
CVE-2025-59775 Apache HTTP Server: NTLM Leakage on Windows through UNC SSRF
CVE-2025-55753 Apache HTTP Server: mod_md (ACME), unintended retry intervals

IV. Related Vulnerabilities

Same product: Apache HTTP Server
Same vendor: Apache Software Foundation

V. Comments for CVE-2025-66200

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