CVE-2017-0147
Published: May 24, 2022
Official Description
The SMBv1 server in Microsoft Windows allows remote attackers to obtain sensitive information from process memory via a crafted packet.
CISA KEV Advisory
Microsoft Windows SMBv1 Information Disclosure Vulnerability
The SMBv1 server in Microsoft Windows allows remote attackers to obtain sensitive information from process memory via a crafted packet.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in the SMBv1 server of Microsoft Windows allows remote attackers to extract sensitive information from process memory. The high EPSS score of 0.92418 indicates a significant likelihood of exploitation. Its inclusion in the KEV catalog confirms active exploitation, making it a critical concern.
This vulnerability is actively exploited in the wild and is part of CISA's Known Exploited Vulnerabilities catalog. The flaw is remotely exploitable via crafted packets.
Disable SMBv1 on all Windows systems as it is an outdated and insecure protocol. Apply all available security updates from Microsoft to address this and related vulnerabilities.
Technical Analysis
CVE-2017-0147 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-2017-0147 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-2017-0147 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