CVE-2017-0145highunder attackransomware

CVE-2017-0145: high-severity vulnerability in Microsoft Corporation Windows SMB

Published 17 Mar 2017 · Updated 14 Aug 2026

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100Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 8.8epss 90%

from disclosure to weapon31 days

Published on NVDMar 17

1st PoC+31d

metasploitMar 14

CISA KEV+1791d

Action required by CISAfederal deadline: 2022-08-10

Apply updates per vendor instructions.

In short

A flaw in Windows SMB file-sharing protocol allows attackers to send specially crafted network packets that can crash your computer or run malicious code without needing to log in. This is a serious vulnerability because SMB is widely used for file sharing across networks.

Technical detail

The SMBv1 server implementation in multiple Windows versions contains a remote code execution vulnerability triggered via malformed SMB packets. The attack requires network access to port 445 (SMB) but no authentication or user interaction; successful exploitation results in arbitrary code execution with system privileges.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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-2017-0143, CVE-2017-0144, CVE-2017-0146, and CVE-2017-0148.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Corporation · Windows SMB

public PoCs found — 8✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/47456 exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/41891 exploitdbwww.exploit-db.com/exploits/41987unverified githubgithub.com/MelonSmasher/chef_tissues★ 0 cve_referencewww.exploit-db.com/exploits/41987/unverified cve_referencepacketstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.htmlunverified cve_referencepacketstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.htmlunverified cve_referencewww.exploit-db.com/exploits/41891/unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

Related CVEs — Microsoft Corporation Windows SMB

In the same product, most dangerous first.

CVE-2017-0147HIGHCVE-2017-0147EPSS 99.7%KEV CVE-2017-0148HIGHCVE-2017-0148EPSS 99.4%KEV CVE-2017-0144HIGHCVE-2017-0144EPSS 99.2%KEV CVE-2017-0143HIGHCVE-2017-0143EPSS 93.3%KEV CVE-2017-0146HIGHCVE-2017-0146EPSS 89.9%KEV

References

http://packetstormsecurity.com/files/154690/DOUBLEPULSAR-Payload-Execution-Neutralization.html http://packetstormsecurity.com/files/156196/SMB-DOUBLEPULSAR-Remote-Code-Execution.html https://cert-portal.siemens.com/productcert/pdf/ssa-701903.pdf https://cert-portal.siemens.com/productcert/pdf/ssa-966341.pdf https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02 https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0145 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-0145 https://www.exploit-db.com/exploits/41891/https://www.exploit-db.com/exploits/41987/http://www.securityfocus.com/bid/96705 http://www.securitytracker.com/id/1037991