CVE-2026-49787CWE-770

HTTP.sys Denial of Service Vulnerability

High · published July 14, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
67.3
In the wild
Unconfirmed
What it is

Allocation of resources without limits or throttling in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.01174 · 67.3th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-07-14T17:05Z
EPSS history
Timeline
  • 14 JUL 17:05Z
    HTTP.sys Denial of Service Vulnerability
    cvelistv5