CVE-2026-21508

HighCVSS 7.0/10Last modified Jun 17, 2026

Description

Improper authentication in Windows Storage allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.0/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287CWE-426

Affected software

No affected versions have been published.

Timeline

Published
Feb 10, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-215097.8Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locallyCVE-2026-21517.2A vulnerability has been found in D-Link DIR-615 4.10. This affects an unknown part of the file adv_firewall.php of the component DMZ Host FCVE-2026-215108.8Protection mechanism failure in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.CVE-2026-215117.5Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.CVE-2026-215126.5Server-side request forgery (ssrf) in Azure DevOps Server allows an authorized attacker to perform spoofing over a network.CVE-2026-215138.8Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.CVE-2026-215147.8Reliance on untrusted inputs in a security decision in Microsoft Office Word allows an unauthorized attacker to bypass a security feature loCVE-2026-215159.9Exposure of sensitive information to an unauthorized actor in Azure IOT Central allows an authorized attacker to elevate privileges over a nCVE-2026-215167.8Improper neutralization of special elements used in a command ('command injection') in Github Copilot allows an unauthorized attacker to exeCVE-2026-215177.0Improper link resolution before file access ('link following') in Windows App for Mac allows an authorized attacker to elevate privileges loCVE-2026-215188.8Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio Code allows an unautCVE-2026-215197.8Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges
CVE-2026-21508: High severity, CVSS 7.0 | Vulnix