Patch Forecast
Amber warning
Patch this week.

CVE-2026-61359

Microsoft Windows 11 23h2: heap buffer overflow

Risk score
67/100
CVSS
7.8 v3.1
Exploit chance (30 days)
0.3%
Published
11 Aug 2026

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What to know

What it is
A heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally. An attacker could use this vulnerability to gain elevated privileges on a local system.
Affected
{'product': 'Windows 11 23H2', 'vendor': 'Microsoft'}
Fix
Check the linked advisory for the concrete fix.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 7.8 high
  • On your watchlist: windows server
  • Named in a government or vendor bulletin

Government and vendor bulletins

References

Original description

Heap-based buffer overflow in Windows Storage allows an authorized attacker to elevate privileges locally.

Last activity 21 Oct 2026. Patch Forecast updates every hour.