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CVE-2026-45494— Microsoft Edge (Chromium-based) Spoofing 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。攻击者利用该漏洞执行欺骗攻击。

CVSS 5.4 · Medium EPSS 0.30% · P22

Possible ATT&CK Techniques 1 AI

T1553.005 · Mark-of-the-Web Bypass

Affected Version Matrix 1

VendorProduct Version RangeStatus
Microsoft Microsoft Edge (Chromium-based) 1.0.0.0< 148.0.3967.70 affected
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I. Basic Information for CVE-2026-45494

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Microsoft Edge (Chromium-based) Spoofing 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:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
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。攻击者利用该漏洞执行欺骗攻击。
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 ~ 148.0.3967.70 -

II. Public POCs for CVE-2026-45494

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III. Intelligence Information for CVE-2026-45494

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Vendor Advisories for CVE-2026-45494 (1)

Same Patch Batch · Microsoft · 2026-05-18 · 4 CVEs total

CVE-2026-42822 10.0 CRITICAL Azure Local Disconnected Operations (ALDO) Elevation of Privilege Vulnerability
CVE-2026-45495 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-45492 5.4 MEDIUM Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability

IV. Related Vulnerabilities

Same product: Microsoft Edge (Chromium-based)
Same vendor: Microsoft
Same weakness: CWE-79

V. Comments for CVE-2026-45494

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