Skip to content
MicrosoftCVE-2026-85892

Microsoft Edge (Chromium-based): race condition

High7.8CVE-2026-85892 · Published Sep 14, 2026 · updated Sep 25, 2026

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Edge (Chromium-based) allows an authorized attacker to elevate privileges locally.

Microsoft advisory

Affected versions

PackageAffectedFixed in
Microsoft Edge (Chromium-based)
Product
>= 1.0.0.0, < 152.0.4191.66152.0.4191.66
Details and references
CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-362

More Microsoft advisories

All Microsoft
Advisory
Microsoft Copilot: command injection
Medium6.1Sep 17
Microsoft Edge (Chromium-based): use after free
High8.8Sep 15
Microsoft Edge (Chromium-based): heap buffer overflow
High8.8Sep 15
Microsoft Windows 11 version 26H1: double free
High8.2Sep 14
Microsoft Edge (Chromium-based): cross-site scripting
Medium6.1Sep 11
Microsoft Edge: use after free
High8.5Sep 11

Critical advisories by email

Wednesdays: the week’s critical and high advisories in the AI and data stack, with the fixed versions. Only in weeks that have some.

Double opt-in. Unsubscribe any time.