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Vulnerability record · CVE-2017-12150 · published 26 July 2018

CVE-2017-12150: Samba vulnerability

Samba · Samba

It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.

7.4 CVSS 3.1 High EPSS 13% · top 3.7% CWE-300 · CWE-300
7.4CVSS 3.1 base score, v2 5.8
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

Description

It was found that samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8 did not enforce "SMB signing" when certain configuration options were enabled. A remote attacker could launch a man-in-the-middle attack and retrieve information in plain-text.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/100918 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039401 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:2789 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2790 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2791 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2858 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12150 Issue TrackingMitigationThird Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03775en_us Third Party Advisory
https://security.netapp.com/advisory/ntap-20170921-0001/ Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_us Third Party Advisory
https://www.debian.org/security/2017/dsa-3983 Third Party Advisory
https://www.samba.org/samba/security/CVE-2017-12150.html PatchVendor Advisory
http://www.securityfocus.com/bid/100918 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039401 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:2789 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2790 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2791 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2858 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12150 Issue TrackingMitigationThird Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03775en_us Third Party Advisory
https://security.netapp.com/advisory/ntap-20170921-0001/ Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03817en_us Third Party Advisory
https://www.debian.org/security/2017/dsa-3983 Third Party Advisory
https://www.samba.org/samba/security/CVE-2017-12150.html PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-12150), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.