CVSS 3.1
8.0 highCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HCVE-2026-69643
Heap-based buffer overflow in Windows Spaceport.sys allows an authorized attacker to elevate privileges over a network.
Severity
- EPSS
- 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
- CWE
- CWE-122
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:windows_10_1607
- microsoft:windows_10_1809
- microsoft:windows_10_21h2
- microsoft:windows_10_22h2
- microsoft:windows_11_23h2
- microsoft:windows_11_24h2
- microsoft:windows_11_25h2
- microsoft:windows_11_26h1
- microsoft:windows_server_2012
- microsoft:windows_server_2016
- microsoft:windows_server_2019
- microsoft:windows_server_2022
- microsoft:windows_server_2025