November 3, 2021 · Applied Cybernetics Group
CVE-2017-0143 — Microsoft Windows
known ransomware use
Microsoft Windows Server Message Block (SMBv1) Remote Code Execution Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Microsoft
- Product
- Windows
- EPSS
- 99.9th percentile (score 0.940, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2017-0143
CISA short description
Microsoft Windows Server Message Block 1.0 (SMBv1) contains an unspecified vulnerability that allows for remote code execution.
Required action
Apply updates per vendor instructions.