CVE-2016-2125

Name: CVE-2016-2125
Creator: NVD / NIST
Published: 2018-10-31T20:29:00.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 9.27%

Last modified Jun 17, 2026

CVE-2016-2125 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. It was found that Samba before versions 4.5.3, 4.4.8, 4.3.13 always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.. EPSS estimates a 9.27% chance of exploitation in the next 30 days.

Description

It was found that Samba before versions 4.5.3, 4.4.8, 4.3.13 always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

9.27%

94.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Samba	Samba	>= 3.0.25, < 4.3.13
Samba	Samba	>= 4.4.0, < 4.4.8
Samba	Samba	>= 4.5.0, < 4.5.3
Redhat	Gluster Storage	3.0
Redhat	Enterprise Linux Desktop	6.0
Redhat	Enterprise Linux Desktop	7.0
Redhat	Enterprise Linux Server	6.0
Redhat	Enterprise Linux Server	7.0
Redhat	Enterprise Linux Server Aus	7.4
Redhat	Enterprise Linux Server Aus	7.6
Redhat	Enterprise Linux Server Eus	7.3
Redhat	Enterprise Linux Server Eus	7.4
Redhat	Enterprise Linux Server Eus	7.5
Redhat	Enterprise Linux Server Eus	7.6
Redhat	Enterprise Linux Server Tus	7.3
Redhat	Enterprise Linux Server Tus	7.6
Redhat	Enterprise Linux Workstation	6.0
Redhat	Enterprise Linux Workstation	7.0

References

http://rhn.redhat.com/errata/RHSA-2017-0494.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0495.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0662.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0744.htmlThird Party Advisory
http://www.securityfocus.com/bid/94988Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037494Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:1265Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2125Issue Tracking, Mitigation, Third Party Advisory
https://www.samba.org/samba/security/CVE-2016-2125.htmlMitigation, Patch, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2017-0494.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0495.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0662.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0744.htmlThird Party Advisory
http://www.securityfocus.com/bid/94988Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1037494Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2017:1265Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2125Issue Tracking, Mitigation, Third Party Advisory
https://www.samba.org/samba/security/CVE-2016-2125.htmlMitigation, Patch, Vendor Advisory

Timeline

Published: Oct 31, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2125?

How severe is CVE-2016-2125?

CVE-2016-2125 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 9.27% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2125?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-2125?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST