Summary
Impact: Elevation of Privilege. Microsoft rating: Important. Not known to be exploited — Exploitation Unlikely. Customer action: Required.
Details
What privileges could be gained by an attacker who successfully exploited the vulnerability?
An attacker could use this vulnerability to elevate privileges from a Low Integrity Level in a contained ("sandboxed") execution environment to a Medium Integrity Level. Please refer to AppContainer isolation and Mandatory Integrity Control for more information.
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
The user must visit the attacker‑controlled webpage, and perform the two tap gestures that cause autofill to activate.
What is the version information for this release?
153.0.4234.32: 153.0.4234.32, 09/10/2026: 09/10/2026, 153.0.8010.37: 153.0.8010.37
Security updates
153.0.4234.32 — https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security
153.0.4234.32 — https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security
Vulnerabilities 1
-
High 8.8
Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability
Use after free in Microsoft Edge (Chromium-based) allows an unauthorized attacker to elevate privileges over a network.
Revision history
-
#1
Information published.
References
-
CVE-2026-85893 Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85893
-
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
-
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
-
Common Vulnerability Scoring System
https://www.first.org/cvss