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CVE-2025-21279— Microsoft Edge (Chromium-based) Remote Code Execution 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，该漏洞源于攻击者可以远程执行代码。

CVSS 6.5 · Medium EPSS 1.62% · P75

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-21279

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
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，该漏洞源于攻击者可以远程执行代码。
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 ~ 133.0.3065.51 -

II. Public POCs for CVE-2025-21279

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III. Intelligence Information for CVE-2025-21279

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Vendor Advisories for CVE-2025-21279 (1)

Same Patch Batch · Microsoft · 2025-02-06 · 8 CVEs total

CVE-2025-21342 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2025-21408 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2025-21177 8.7 HIGH Microsoft Dynamics 365 Sales Elevation of Privilege Vulnerability
CVE-2025-21283 6.5 MEDIUM Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2025-21253 5.3 MEDIUM Microsoft Edge for IOS and Android Spoofing Vulnerability
CVE-2025-21267 4.4 MEDIUM Microsoft Edge (Chromium-based) Spoofing Vulnerability
CVE-2025-21404 4.3 MEDIUM Microsoft Edge (Chromium-based) Spoofing Vulnerability

IV. Related Vulnerabilities

Same product: Microsoft Edge (Chromium-based)
Same vendor: Microsoft
Same weakness: CWE-843

V. Comments for CVE-2025-21279

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