CVE-2026-85897
Microsoft: heap buffer overflow
- Risk score
- 63/100
- CVSS
- 8.8 v3.1
- Published
- 16 Oct 2026
Open in the live forecast Today's forecast
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.