CVE-2026-49975NVD

Vulnerability Summary

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests.

This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

Severity Level

HIGH(7.5)

Published Date

Jun 8, 2026

Last Modified

Aug 19, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

34.30%Probability

Root Weakness (CWE)

CWE-789: Unknown/Unlisted Weakness ↗

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

CWE-409: Unknown/Unlisted Weakness ↗

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

CVSS v3.1 Base Metrics — Score 7.5 (HIGH)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Apache Http Server >= 2.4.17 and < 2.4.68
Debian Debian Linux

Patched Versions

Apache Http Server 2.4.68

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