CVE-2025-66200

MEDIUM EPSS 42.8%
Published Dec 5, 20256mo ago · Modified Jun 17, 20262w ago
5.4 CVSS 3.1
Medium
Find Similar
Published Dec 5, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
42.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-288

Affected Products 1

VendorProductVersionRange
apachehttp_server*≥2.4.7  –  <2.4.66

References 2

  • openwall.com http://www.openwall.com/lists/oss-security/2025/12/04/8
    Issue TrackingThird Party Advisory
  • httpd.apache.org https://httpd.apache.org/security/vulnerabilities_24.html
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.