CVE-2026-33096

HIGHPre-NVD 7.57.5—

7.5

Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 57.9%
KEV: Not listed

Published

April 14, 2026

Last Modified

June 1, 2026

Advisory Details (1)

Auto-updated Jun 11, 2026

Patch available. Sources: microsoft.

microsoft Patch Available

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33096

Vendor Advisories for CVE-2026-33096(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2026-33096
Microsoft Security Response Center (MSRC)High
HTTP.sys Denial of Service Vulnerability

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-125Out-of-bounds Read

Frequently asked(5)

What is CVE-2026-33096?

CVE-2026-33096 is a high vulnerability published on April 14, 2026. Out-of-bounds read in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

When was CVE-2026-33096 disclosed?

CVE-2026-33096 was first published in the National Vulnerability Database on April 14, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-33096 actively exploited?

CVE-2026-33096 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-33096?

CVE-2026-33096 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).

How do I remediate CVE-2026-33096?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33096, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-33096

📅 Published

🔄 Last Modified

📋 Advisory Details (1)