Microsoft · SMBv1 server
CVE-2017-0147
Microsoft Windows SMBv1 Information Disclosure Vulnerability
What it is
The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to obtain sensitive information from process memory via a crafted packets, aka "Windows SMB Information Disclosure Vulnerability."
CISA: The SMBv1 server in Microsoft Windows allows remote attackers to obtain sensitive information from process memory via a crafted packet.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: June 14, 2022
- Added to the CISA list
- May 24, 2022
- Published
- March 17, 2017
- Severity
- High 7.5 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 99.7% in the top 0.1% of all known vulnerabilities
- Weakness
- CWE-200
- More details
- NVD · CVE.org · CISA
All references (11)
- https://www.exploit-db.com/exploits/41891/
- http://www.securitytracker.com/id/1037991
- http://www.securityfocus.com/bid/96709
- https://cert-portal.siemens.com/productcert/pdf/ssa-701903.pdf
- https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
- https://www.exploit-db.com/exploits/41987/
- https://cert-portal.siemens.com/productcert/pdf/ssa-966341.pdf
- https://www.exploit-db.com/exploits/43970/
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0147
- http://packetstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.html
- http://packetstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.html
More exploited flaws from Microsoft
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Apr 6, 2022 | Remote Code Execution | SMBv1 server | High 8.1 | 99.4% |
| Oct 13, 2026 | Command Injection | Windows | High 8.8 | 9.8% |
| Sep 25, 2026 | Code Injection | SharePoint | High 8.8 | 8.2% |
| Sep 8, 2026 | Link Following | Windows | High 7.8 | 0.4% |
| Sep 8, 2026 | Heap-Based Buffer Overflow | Windows | High 7.8 | 0.4% |
| Aug 26, 2026 | Remote Code Execution | SQL Server | High 8.8 | 57% |
| Aug 18, 2026 | Double Free | Internet Key Exchange (IKE) Service Extensions | Critical 9.8 | 77% |
| Aug 18, 2026 | Weak Authentication | SharePoint | Critical 9.1 | 70% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.