Patch Forecast
Amber warning
Patch this week.

CVE-2026-85897

Microsoft: heap buffer overflow

Risk score
63/100
CVSS
8.8 v3.1
Published
16 Oct 2026

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What to know

What it is
A heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an attacker to execute code over a network, potentially leading to code execution, data integrity, and system integrity compromise.
Affected
{'vendor': 'microsoft', 'product': 'Microsoft Edge (Chromium-based)', 'packages': [], 'versions': 'unknown'}
Fix
Check the linked advisory for details on the fix.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 8.8 high
  • Remotely exploitable without logging in
  • Named in a government or vendor bulletin

Government and vendor bulletins

References

Original description

Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Last activity 29 Oct 2026. Patch Forecast updates every hour.