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CVE-2026-85893— Microsoft Edge (Chromium-based) Elevation of Privilege 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（基于 Chromium）中的释放后使用漏洞允许未经授权的攻击者通过网络提升权限。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-85893

Vulnerability Information
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Vulnerability Title
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges 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:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft Edge (Chromium-based) 1.0.0.0 ~ 153.0.4234.32 -

II. Public POCs for CVE-2026-85893

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III. Intelligence Information for CVE-2026-85893

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Vendor Advisories for CVE-2026-85893 (1)

IV. Related Vulnerabilities

Same product: Microsoft Edge (Chromium-based)
Same vendor: Microsoft
Same weakness: CWE-416

V. Comments for CVE-2026-85893

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