high7.5
CVE-2026-83855
Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unauthorized attacker to deny service over a network.
Impact
Integer underflow (wrap or wraparound) in Windows WLAN Service allows an unauthorized attacker to deny service over a network.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Microsoft | Windows 11 23h2 | before 10.0.22631.7652 |
| Microsoft | Windows 11 24h2 | before 10.0.26100.9711 |
| Microsoft | Windows 11 25h2 | before 10.0.26200.9711 |
| Microsoft | Windows 11 26h1 | before 10.0.28000.3231 |
| Microsoft | Windows 11 26h2 | before 10.0.26300.9711 |
| Microsoft | Windows Server 2025 | before 10.0.26100.33650 |