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CVE-2021-42307— Microsoft Edge (Chromium-based) Information Disclosure 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 存在信息泄露漏洞，该漏洞允许远程攻击者访问潜在的敏感信息。

CVSS 4.3 · Medium EPSS 1.04% · P63

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2021-42307

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Edge 信息泄露漏洞
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 存在信息泄露漏洞，该漏洞允许远程攻击者访问潜在的敏感信息。
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 ~ 95.0.1020.30 -

II. Public POCs for CVE-2021-42307

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III. Intelligence Information for CVE-2021-42307

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Vendor Advisories for CVE-2021-42307 (1)

Same Patch Batch · Microsoft · 2023-06-30 · 4 CVEs total

CVE-2021-31982 8.8 HIGH Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2021-34506 6.1 MEDIUM Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2021-34475 5.4 MEDIUM Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-42307

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