CVE-2013-4496

Name: CVE-2013-4496
Creator: NVD / NIST
Published: 2014-03-14T10:55:05.177+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 10.56%

Last modified Jun 16, 2026

CVE-2013-4496 is a vulnerability of currently unknown severity. Samba 3.x before 3.6.23, 4.0.x before 4.0.16, and 4.1.x before 4.1.6 does not enforce the password-guessing protection mechanism for all interfaces, which makes it easier for remote attackers to obtain access via brute-force ChangePasswordUser2 (1) SAMR or (2) RAP attempts.. EPSS estimates a 10.56% chance of exploitation in the next 30 days.

Description

Samba 3.x before 3.6.23, 4.0.x before 4.0.16, and 4.1.x before 4.1.6 does not enforce the password-guessing protection mechanism for all interfaces, which makes it easier for remote attackers to obtain access via brute-force ChangePasswordUser2 (1) SAMR or (2) RAP attempts.

Metrics

EPSS Probability

10.56%

95.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-255

Affected Software

Vendor	Product	Versions
Samba	Samba	>= 3.4.0, < 3.6.23
Samba	Samba	>= 4.0.0, < 4.0.16
Samba	Samba	>= 4.1.0, < 4.1.6
Canonical	Ubuntu Linux	10.04
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	12.10
Canonical	Ubuntu Linux	13.10

References

http://advisories.mageia.org/MGASA-2014-0138.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2014-03/msg00062.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2014-03/msg00063.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0330.htmlThird Party Advisory
http://security.gentoo.org/glsa/glsa-201502-15.xmlThird Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:082Third Party Advisory
http://www.samba.org/samba/history/samba-3.6.23.htmlVendor Advisory
http://www.samba.org/samba/history/samba-4.0.16.htmlVendor Advisory
http://www.samba.org/samba/history/samba-4.1.6.htmlVendor Advisory
http://www.samba.org/samba/security/CVE-2013-4496Vendor Advisory
http://www.securityfocus.com/bid/66336Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2156-1Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=10245Issue Tracking, Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993Third Party Advisory
http://advisories.mageia.org/MGASA-2014-0138.htmlThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2014-03/msg00062.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2014-03/msg00063.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2014-0330.htmlThird Party Advisory
http://security.gentoo.org/glsa/glsa-201502-15.xmlThird Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2015:082Third Party Advisory
http://www.samba.org/samba/history/samba-3.6.23.htmlVendor Advisory
http://www.samba.org/samba/history/samba-4.0.16.htmlVendor Advisory
http://www.samba.org/samba/history/samba-4.1.6.htmlVendor Advisory
http://www.samba.org/samba/security/CVE-2013-4496Vendor Advisory
http://www.securityfocus.com/bid/66336Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2156-1Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=10245Issue Tracking, Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993Third Party Advisory

Timeline

Published: Mar 14, 2014
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-4496?

How severe is CVE-2013-4496?

Severity scoring for CVE-2013-4496 is pending analysis. The EPSS model estimates a 10.56% probability of exploitation in the next 30 days.

How do I fix CVE-2013-4496?

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-2013-4496?

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

Scan your code now

Source: NVD / NIST