Microsoft · Windows
CVE-2017-0143
Microsoft Windows Server Message Block (SMBv1) Remote Code Execution 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 execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0144, CVE-2017-0145, CVE-2017-0146, and CVE-2017-0148.
CISA: Microsoft Windows Server Message Block 1.0 (SMBv1) contains an unspecified vulnerability that allows for remote code execution.
What to do
Apply updates per vendor instructions.
Deadline for US federal agencies: May 3, 2022
- Added to the CISA list
- November 3, 2021
- Published
- March 17, 2017
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 93% in the top 0.2% of all known vulnerabilities
- Weakness
- CWE-20
- More details
- NVD · CVE.org · CISA
All references (11)
- https://www.exploit-db.com/exploits/41891/
- http://www.securityfocus.com/bid/96703
- http://www.securitytracker.com/id/1037991
- https://cert-portal.siemens.com/productcert/pdf/ssa-701903.pdf
- https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0143
- https://www.exploit-db.com/exploits/41987/
- https://cert-portal.siemens.com/productcert/pdf/ssa-966341.pdf
- https://www.exploit-db.com/exploits/43970/
- 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 |
|---|---|---|---|---|
| Oct 13, 2026 | Command Injection | Windows | High 8.8 | 9.8% |
| Sep 8, 2026 | Link Following | Windows | High 7.8 | 0.4% |
| Sep 8, 2026 | Heap-Based Buffer Overflow | Windows | High 7.8 | 0.4% |
| May 20, 2026 | Buffer Overflow | Windows | Critical 9.8 | 99% |
| Apr 28, 2026 | Protection Mechanism Failure | Windows | Medium 4.3 | 71% |
| Apr 13, 2026 | Out-of-Bounds Read | Windows | High 7.8 | 12% |
| Apr 13, 2026 | Link Following | Windows | High 7.8 | 4.6% |
| Feb 17, 2026 | Microsoft Windows Video ActiveX Control Remote Code Execution | Windows | High 8.8 | 77% |
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.