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From The CircuitryVerified tech news, cross-checked.How we verify →
  • Microsoft Flags Edge Type-Confusion Flaw CVE-2026-62765 (CVSS 7.5)Tech
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Fact-check summary

Microsoft Security Response Center, CVE.org, and GitHub Advisory Database confirm the Edge use-after-free CVE-2026-85893 (CVSS 8.8, Important severity) patched in 153.0.4234.32.

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Home/Security/Microsoft Edge Use-After-Free Flaw CVE-2026-85893 Rated High Severity
VERIFIEDBy Xavier Rivera·Wednesday, September 16, 2026 at 6:31 PM AST·1 min read

Microsoft Edge Use-After-Free Flaw CVE-2026-85893 Rated High Severity

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.

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Microsoft Edge Use-After-Free Flaw CVE-2026-85893 Rated High Severity
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TL;DRAI · 60 sec read

Microsoft discloses a high-severity elevation of privilege flaw CVE-2026-85893 in Edge. The use-after-free vulnerability scores 8.8 on CVSS 3.1 and lets network attackers elevate privileges without authorization. Microsoft rates it Important. The issue has seen no public disclosure or exploitation. Exploitation is unlikely. Users should apply the update to 153.0.4234.32 or newer.

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Microsoft has disclosed a high-severity elevation of privilege vulnerability in its Chromium-based Edge browser. The flaw, tracked as CVE-2026-85893, carries a CVSS 3.1 base score of 8.8.

The vulnerability is a use-after-free flaw. It stems from CWE-416 and allows an unauthorized attacker to elevate privileges over a network. Microsoft rates the maximum severity as Important.
Successful exploitation could allow an attacker to elevate privileges from a Low Integrity Level in a sandboxed execution environment to a Medium Integrity Level.

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 vulnerability has not been publicly disclosed or exploited in the wild. Exploitation is assessed as unlikely at the time of publication.
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User interaction is required to trigger the flaw. The victim must visit an attacker-controlled webpage and perform two tap gestures that trigger autofill. The affected version range is Microsoft Edge versions prior to 153.0.4234.32, based on Chromium 153.0.8010.37 released September 10, 2026.
The victim must visit an attacker-controlled webpage and perform two tap gestures that trigger autofill.
The vulnerability was reported by two researchers. Nan Wang, known as @eternalsakura13, and Ziling Chen discovered and reported the issue. Microsoft recommends updating to the patched version 153.0.4234.32 or later.
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The CVSS vector details the attack requirements. The vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C. No additional mitigations beyond patching are detailed in the advisory.

EXPERT TAKE

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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