CVE-2026-66316— 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Microsoft公司的一款Windows10附带的Web浏览器。 Microsoft Edge 151.0.4129.59之前版本存在输入验证错误漏洞，该漏洞源于来源验证错误，可能导致未经授权的攻击者在网络上进行欺骗攻击。
Possible ATT&CK Techniques 1 AI
T1498 · Network Denial of ServiceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft Edge (Chromium-based) | 1.0.0.0< 151.0.4129.59 |
affected |
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I. Basic Information for CVE-2026-66316
Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Spoofing Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Origin validation error 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:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
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 151.0.4129.59之前版本存在输入验证错误漏洞，该漏洞源于来源验证错误，可能导致未经授权的攻击者在网络上进行欺骗攻击。
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 ~ 151.0.4129.59 | - |
|
II. Public POCs for CVE-2026-66316
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-66316 (1)
Same Patch Batch · Microsoft · 2026-08-03 · 16 CVEs total
| CVE-2026-62870 | 8.8 HIGH | Microsoft Excel Remote Code Execution Vulnerability |
| CVE-2026-66318 | 8.1 HIGH | Microsoft Edge (Chromium-based) Information Disclosure Vulnerability |
| CVE-2026-66310 | 7.7 HIGH | Microsoft Edge for Android Information Disclosure Vulnerability |
| CVE-2026-66315 | 7.5 HIGH | Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability |
| CVE-2026-65802 | 7.4 HIGH | Microsoft Edge for Android Information Disclosure Vulnerability |
| CVE-2026-66321 | 7.4 HIGH | Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability |
| CVE-2026-66322 | 7.1 HIGH | Microsoft Edge (Chromium-based) Spoofing Vulnerability |
| CVE-2026-66313 | 6.8 MEDIUM | Microsoft Edge (Chromium-based) Tampering Vulnerability |
| CVE-2026-66326 | 6.5 MEDIUM | Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability |
| CVE-2026-66314 | 6.5 MEDIUM | Microsoft Edge (Chromium-based) Information Disclosure Vulnerability |
| CVE-2026-66312 | 6.5 MEDIUM | Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability |
| CVE-2026-66311 | 6.2 MEDIUM | Microsoft Edge (Chromium-based) Tampering Vulnerability |
| CVE-2026-66325 | 6.1 MEDIUM | Microsoft Edge (Chromium-based) Spoofing Vulnerability |
| CVE-2026-65804 | 6.1 MEDIUM | Microsoft Edge (Chromium-based) Spoofing Vulnerability |
| CVE-2026-66317 | 5.4 MEDIUM | Microsoft Edge (Chromium-based) Tampering Vulnerability |
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V. Comments for CVE-2026-66316
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