Cyber Resilience

CVE-2026-33007

Medium

Published: 04 May 2026

Published
04 May 2026
Modified
04 May 2026
KEV Added
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Patch
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CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0065 71.3th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-33007 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Apache Http Server. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked in the top 28.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A NULL pointer dereference in the mod_authn_socache in Apache HTTP Server 2.4.66 and earlier allows an unauthenticated remote user to crash a child process in a caching forward proxy configuration. Users are recommended to upgrade to version 2.4.67, which fixes…

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this issue.

CWE(s)
CWE-476

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

NULL dereference enables remote unauthenticated crash of Apache child process, directly mapping to application exploitation for endpoint DoS.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

Affected Assets

apache
http server
2.4.0 — 2.4.67

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References