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CVE-2026-85899

HighCVSS 8.1/10Last modified Nov 3, 2026

Description

Use after free in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges over a network.

Metrics

CVSS 3.1 8.1/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

Affected software

Vendor	Product	Versions
Microsoft	Microsoft Edge (Chromium-based)	>= 1.0.0.0, < 155.0.4283.45

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85899Patch, Vendor Advisory

Timeline

Published: Oct 29, 2026
Last modified: Nov 3, 2026
NVD status: Analyzed

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CVE-2026-85899: High severity, CVSS 8.1 | Vulnix