CVE-2017-0148VulnerabilityPublished 04/06/2022Updated 10/24/2026
CVE-2017-0148: Microsoft SMBv1 Server Remote Code Execution Vulnerability
Affects Microsoft SMBv1 serverSource CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 04/06/2022
- KEV deadline
- 04/27/2022
- Ransomware
- Used in ransomware campaigns
- EPSS
- 99.4% chance of exploitation in 30 days – higher than 99% of CVEs
What to do
CISA required action
Apply updates per vendor instructions.
Description
CVE-2017-0148 is a remote code execution vulnerability in the Microsoft SMBv1 server that allows remote attackers to execute arbitrary code by sending specially crafted packets. This vulnerability has been exploited in the wild and is associated with known ransomware campaigns.