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CVE-2021-31937— Microsoft Edge (Chromium-based) Elevation of Privilege 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 存在安全特征问题漏洞，该漏洞允许远程攻击者绕过目前的安全限制，诱使受害者访问专门设计的网站，从而获得敏感信息或修改数据。以下产品及版本受到影响：Microsoft Edge (Chromium-based): 79.0.309.71, 83.0.478.37, 84.0.522.40, 86.0.622.43, 86.0.622.48, 86.0.622

CVSS 8.2 · High EPSS 0.85% · P57

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-31937

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Edge 安全特征问题漏洞
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 存在安全特征问题漏洞，该漏洞允许远程攻击者绕过目前的安全限制，诱使受害者访问专门设计的网站，从而获得敏感信息或修改数据。以下产品及版本受到影响：Microsoft Edge (Chromium-based): 79.0.309.71, 83.0.478.37, 84.0.522.40, 86.0.622.43, 86.0.622.48, 86.0.622
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 ~ 91.0.864.37 cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2021-31937

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III. Intelligence Information for CVE-2021-31937

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Vendor Advisories for CVE-2021-31937 (1)

IV. Related Vulnerabilities

Same product: Microsoft Edge (Chromium-based)
Same vendor: Microsoft

V. Comments for CVE-2021-31937

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