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CVE-2026-21250highCWE-822

Windows HTTP.sys Elevation of Privilege Vulnerability

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.8epss 1.0%
from disclosure to weapon83 days
Published on NVDFeb 10
1st PoC+83d
exploitation probability
1.0%top 39% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.