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CVE-2026-66324— Microsoft Edge (Chromium-based) Spoofing Vulnerability

Quick assessment

Affected
Microsoft Microsoft Edge for Android
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Microsoft公司的一款Windows10附带的Web浏览器。 Microsoft Edge (Chromium-based) 1.0.0.0版本至152.0.4191.53之前版本存在输入验证错误漏洞，该漏洞源于外部控制文件名或路径，可能导致未经授权的攻击者通过网络进行欺骗。

CVSS 6.5 · Medium EPSS 0.92% · P60

Possible ATT&CK Techniques 1 AI

T1567 · Exfiltration Over Web Service

Affected Version Matrix 5

VendorProduct Version RangeStatus
Microsoft Microsoft Edge for Android 1.0.0.0< 152.0.4191.52 affected
Microsoft Microsoft Edge for iOS 1.0.0.0< 152.0.4191.52 affected
Microsoft Microsoft Edge for Linux 1.0.0< 152.0.4191.52 affected
Microsoft Microsoft Edge for MAC 1.0.0.0< 152.0.4191.52 affected
Microsoft Microsoft Edge for Windows 1.0.0.0< 152.0.4191.52 affected
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I. Basic Information for CVE-2026-66324

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
External control of file name or path in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing over a network.
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
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Edge 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Edge是美国Microsoft公司的一款Windows10附带的Web浏览器。 Microsoft Edge (Chromium-based) 1.0.0.0版本至152.0.4191.53之前版本存在输入验证错误漏洞，该漏洞源于外部控制文件名或路径，可能导致未经授权的攻击者通过网络进行欺骗。
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 for Android 1.0.0.0 ~ 152.0.4191.52 -
Microsoft Microsoft Edge for iOS 1.0.0.0 ~ 152.0.4191.52 -
Microsoft Microsoft Edge for Linux 1.0.0 ~ 152.0.4191.52 -
Microsoft Microsoft Edge for MAC 1.0.0.0 ~ 152.0.4191.52 -
Microsoft Microsoft Edge for Windows 1.0.0.0 ~ 152.0.4191.52 -

II. Public POCs for CVE-2026-66324

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III. Intelligence Information for CVE-2026-66324

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Vendor Advisories for CVE-2026-66324 (1)

Same Patch Batch · Microsoft · 2026-08-28 · 8 CVEs total

CVE-2026-72984 8.8 HIGH Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-70309 5.4 MEDIUM Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
CVE-2026-66323 5.4 MEDIUM Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability
CVE-2026-62904 5.4 MEDIUM Microsoft Edge (Chromium-based) Information Disclosure Vulnerability
CVE-2026-70331 5.4 MEDIUM Microsoft Edge for iOS Spoofing Vulnerability
CVE-2026-58616 4.4 MEDIUM Copilot Chat (Microsoft Edge) Information Disclosure Vulnerability
CVE-2026-66798 4.3 MEDIUM Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

IV. Related Vulnerabilities

Same product: Microsoft Edge for Android
Same vendor: Microsoft
Same weakness: CWE-73

V. Comments for CVE-2026-66324

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