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Vulnerability record · CVE-2017-0269 · published 12 May 2017

CVE-2017-0269: Microsoft windows 10 improper input validation vulnerability

Microsoft · Windows 10

The Microsoft Server Message Block 1.0 (SMBv1) allows denial of service when an attacker sends specially crafted requests to the server, aka "Windows SMB Denial of Service Vulnerability". This CVE ID is unique from CVE-2017-0273 and CVE-2017-0280.

5.9 CVSS 3.0 Medium EPSS 6.5% · top 6.5% CWE-20 · Improper input validation
5.9CVSS 3.0 base score, v2 4.3
6.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

The Microsoft Server Message Block 1.0 (SMBv1) allows denial of service when an attacker sends specially crafted requests to the server, aka "Windows SMB Denial of Service Vulnerability". This CVE ID is unique from CVE-2017-0273 and CVE-2017-0280.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/98263 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038433
https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0269 MitigationPatchVendor Advisory
http://www.securityfocus.com/bid/98263 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038433
https://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0269 MitigationPatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-0269), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.