CVE-2017-0147 — Microsoft Windows SMBv1 Information Disclosure Vulnerability

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 f

01What is this vulnerability?

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."

02Affected products

Vendor	Product	Versions
Microsoft Corporation	Windows SMB	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

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-05-24. Ransomware use: Known.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-03-17T00:00:00.000Z
• Last modified: 2025-10-21T23:55:44.104Z
• Added to CISA KEV: 2022-05-24
• BOD 22-01 due: 2022-06-14

09References

• www.exploit-db.com — https://www.exploit-db.com/exploits/41891/
• www.securitytracker.com — http://www.securitytracker.com/id/1037991
• www.securityfocus.com — http://www.securityfocus.com/bid/96709
• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-701903.pdf
• ics-cert.us-cert.gov — https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
• www.exploit-db.com — https://www.exploit-db.com/exploits/41987/
• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-966341.pdf
• www.exploit-db.com — https://www.exploit-db.com/exploits/43970/
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0147
• packetstormsecurity.com — http://packetstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutr…
• packetstormsecurity.com — http://packetstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Executi…