CVE-2026-49160
HighPublished
HTTP.sys Denial of Service Vulnerability
- Published
- Jun 9, 2026
- Updated
- Sep 24, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 8, 2026
Primary CVSS
7.5/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H1.2%
Low · next 30 days
- Percentile
- 67.0%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.
Sources
HTTP.sys Denial of Service Vulnerability & HTTP.sys Remote Code Execution Vulnerability
Responsible use
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