CVE Tools
Sign in

CVE-2025-66200

Apache HTTP Server: mod_userdir+suexec bypass via AllowOverride FileInfo

Published: Dec 5, 2025Updated: Dec 10, 2025 Sources: CVE List NVD BDUCWE-288
5.4MEDIUM
NVD MITRE
EPSS Score
0.6%
Top 57.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-288

Affected Products

Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
Альт 8 СПАО «ИВК»
On-premOS
Operating Systems / linux-distro
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
red hat inc.commercialUSOperating Systemsaka red hat
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ао «ивк»commercialRUOperating Systemsaka ivk
canonical ltd.commercialGBOperating Systemsaka canonical
and 9 more affected products View all →

Exploitability

Official Patch Available

References

https://httpd.apache.org/security/vulnerabilities_24.html
httpd.apache.org
https://www.openwall.com/lists/oss-security/2025/12/04/8
openwall.com
https://altsp.su/obnovleniya-bezopasnosti/
altsp.su
and 12 more references View all →

Timeline

Published
Dec 5, 2025
Last Updated
Dec 10, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-66200 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows