CVE-2025-65082NVD

Vulnerability Summary

Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache HTTP Server through environment variables set via the Apache configuration unexpectedly superseding variables calculated by the server for CGI programs.

This issue affects Apache HTTP Server from 2.4.0 through 2.4.65.

Users are recommended to upgrade to version 2.4.66 which fixes the issue.

Severity Level

MEDIUM(6.5)

Published Date

Dec 5, 2025

Last Modified

Sep 25, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.81%Probability

Root Weakness (CWE)

CWE-150: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics — Score 6.5 (MEDIUM)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityLow

IntegrityLow

AvailabilityNone

Affected & Patched Versions

Affected Versions

Apache Http Server >= 2.4.0 and < 2.4.66

Patched Versions

Apache Http Server 2.4.66

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