CVE-2025-66200 - CVE House
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Status published Unknown CVE-2025-66200

Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Mattias Åsander (Umeå University)

References

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Affected Vendor

Apache Software Foundation

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Affected Software

Apache HTTP Server
Vulnerable Versions:
2.4.7

Timeline

Official Publish: December 5th, 2025
Last Modified: December 5th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.