CVE-2017-0144
Published: February 10, 2022
Official Description
The SMBv1 server in multiple Microsoft Windows versions allows remote attackers to execute arbitrary code via crafted packets.
CISA KEV Advisory
Microsoft SMBv1 Remote Code Execution Vulnerability
The SMBv1 server in multiple Microsoft Windows versions allows remote attackers to execute arbitrary code via crafted packets.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in the SMBv1 server of multiple Microsoft Windows versions allows remote attackers to execute arbitrary code via specially crafted packets. The very high EPSS score of 0.94318 indicates a significant likelihood of exploitation, making this an urgent concern for systems with SMBv1 enabled.
This vulnerability is actively exploited in the wild and is included in CISA's KEV catalog. Its remote exploitability by an unauthenticated attacker makes it a critical threat.
Disable SMBv1 on all Windows systems. Apply the latest security patches from Microsoft to address this vulnerability.
Technical Analysis
CVE-2017-0144 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-2017-0144 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-2017-0144 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