CVE-2017-0148
Published: April 6, 2022
Official Description
The SMBv1 server in Microsoft allows remote attackers to execute arbitrary code via crafted packets.
CISA KEV Advisory
Microsoft SMBv1 Server Remote Code Execution Vulnerability
The SMBv1 server in Microsoft allows remote attackers to execute arbitrary code via crafted packets.
Apply updates per vendor instructions.
Risk Analysis
The SMBv1 server in Microsoft Windows is vulnerable to arbitrary code execution through specially crafted packets. The high EPSS score of 0.94067 indicates a very high likelihood of exploitation, making this a critical vulnerability.
This vulnerability has been actively exploited in the wild and is included in CISA's KEV catalog, confirming its real-world impact. It is remotely exploitable.
Disable SMBv1 where possible and apply the latest security updates for Microsoft Windows to address this remote code execution vulnerability.
Technical Analysis
CVE-2017-0148 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2017-0148 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-0148 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1