Microsoft has disclosed CVE-2026-85893, a high-severity use-after-free vulnerability in Edge that could let an attacker elevate privileges from Low to Medium Integrity Level after a user visits a malicious page and performs two tap gestures. The flaw affects versions prior to 153.0.4234.32 and is rated CVSS 8.8, though exploitation is assessed as unlikely.
Successful exploitation could allow an attacker to elevate privileges from a Low Integrity Level in a sandboxed execution environment to a Medium Integrity Level.
The victim must visit an attacker-controlled webpage and perform two tap gestures that trigger autofill.
Organizations running Edge in enterprise environments should prioritize the update to 153.0.4234.32, as sandbox escapes remain a high-value target even when in-the-wild exploitation is currently unlikely.
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