CVSS 3.1
3.3 lowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NCVE-2026-21249
Low (3.3) in microsoft. EPSS 11% chance of exploitation in the next 30 days.
External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing locally.
Severity
- EPSS
- 11% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)
- CWE
- CWE-73
- 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_server_2012
- microsoft:windows_server_2016
- microsoft:windows_server_2019
- microsoft:windows_server_2022
- microsoft:windows_server_2022_23h2
- microsoft:windows_server_2025