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CVE-2026-21223— Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

Quick assessment

Affected
Microsoft Microsoft Edge (Chromium-based)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Edge是美国微软（Microsoft）公司的一款Windows 10之后版本系统附带的Web浏览器。 Microsoft Edge存在安全漏洞，该漏洞源于特权COM接口验证不当，可能导致非管理员用户执行特权更新命令，从而绕过安全功能。

CVSS 7.1 · High EPSS 0.28% · P18

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Microsoft Edge (Chromium-based) 1.0.0.0< 144.0.3719.82 affected
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I. Basic Information for CVE-2026-21223

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Edge 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Edge是美国微软（Microsoft）公司的一款Windows 10之后版本系统附带的Web浏览器。 Microsoft Edge存在安全漏洞，该漏洞源于特权COM接口验证不当，可能导致非管理员用户执行特权更新命令，从而绕过安全功能。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft Edge (Chromium-based) 1.0.0.0 ~ 144.0.3719.82 -

II. Public POCs for CVE-2026-21223

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III. Intelligence Information for CVE-2026-21223

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IV. Related Vulnerabilities

Same product: Microsoft Edge (Chromium-based)
Same vendor: Microsoft
Same weakness: CWE-269

V. Comments for CVE-2026-21223

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