MicrosoftCVE-2026-85893

Microsoft Edge (Chromium-based): use after free

High8.8CVE-2026-85893 · Published Sep 15, 2026 · updated Sep 25, 2026

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

Microsoft advisory

Affected versions

Package	Affected	Fixed in
Microsoft Edge (Chromium-based) Product	>= 1.0.0.0, < 153.0.4234.32	153.0.4234.32

Details and references

CVSS 3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-416

More Microsoft advisories

Date	Advisory	Severity	Fixed in
Sep 17	Microsoft Azure ARC: privilege escalation Critical10.0Sep 17 CVE-2026-69399No fix yet	Critical10.0	No fix yet
Sep 17	Microsoft Azure Machine Learning: improper authorization High8.6Sep 17 CVE-2026-68791No fix yet	High8.6	No fix yet
Sep 17	Microsoft Copilot: command injection Medium6.1Sep 17 CVE-2026-55946No fix yet	Medium6.1	No fix yet
Sep 15	Microsoft Edge (Chromium-based): heap buffer overflow High8.8Sep 15 CVE-2026-69486153.0.4234.32	High8.8	153.0.4234.32
Sep 14	Microsoft Windows 11 version 26H1: double free High8.2Sep 14 CVE-2026-8592110.0.28000.2956	High8.2	10.0.28000.2956
Sep 14	Microsoft Edge (Chromium-based): race condition High7.8Sep 14 CVE-2026-85892152.0.4191.66	High7.8	152.0.4191.66

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