Windows
CVE-2026-21232
HIGH
Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
AnalysisAI
Windows HTTP.sys contains an untrusted pointer dereference vulnerability that enables authenticated local users to escalate privileges on Windows 11 and Windows Server 2022/2025 systems. An attacker with valid credentials can exploit this flaw to gain elevated access without user interaction. No patch is currently available for this HIGH severity issue affecting multiple Windows versions.
Technical ContextAI
Affects Windows 11 23H2. Untrusted pointer dereference in Windows HTTP.sys allows an authorized attacker to elevate privileges locally.
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-822 – Untrusted Pointer Dereference
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External POC / Exploit Code
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