CVE-2015-7560

Name: CVE-2015-7560
Creator: NVD / NIST
Published: 2016-03-13T22:59:00.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 12.70%

Last modified Jun 17, 2026

CVE-2015-7560 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The SMB1 implementation in smbd in Samba 3.x and 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4 allows remote authenticated users to modify arbitrary ACLs by using a UNIX SMB1 call to create a symlink, and then using a non-UNIX SMB1 call to write to the ACL content.. EPSS estimates a 12.70% chance of exploitation in the next 30 days.

Description

The SMB1 implementation in smbd in Samba 3.x and 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4 allows remote authenticated users to modify arbitrary ACLs by using a UNIX SMB1 call to create a symlink, and then using a non-UNIX SMB1 call to write to the ACL content.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

12.70%

95.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions	Update
Samba	Samba	>= 3.2.0, < 4.1.23	—
Samba	Samba	>= 4.2.0, < 4.2.9	—
Samba	Samba	>= 4.3.0, < 4.3.6	—
Samba	Samba	4.4.0	Rc1
Canonical	Ubuntu Linux	12.04	—
Canonical	Ubuntu Linux	14.04	—
Canonical	Ubuntu Linux	15.10	—
Debian	Debian Linux	7.0	—
Debian	Debian Linux	8.0	—

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178730.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178764.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/180000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00064.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00065.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00081.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00090.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00092.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.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://www.debian.org/security/2016/dsa-3514Third Party Advisory
http://www.securityfocus.com/bid/84267Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1035220Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2922-1Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=11648Issue Tracking, Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05121842Third Party Advisory
https://www.samba.org/samba/security/CVE-2015-7560.htmlVendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178730.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178764.htmlMailing List, Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/180000.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00064.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00065.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00081.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00090.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00092.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.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://www.debian.org/security/2016/dsa-3514Third Party Advisory
http://www.securityfocus.com/bid/84267Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1035220Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/USN-2922-1Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=11648Issue Tracking, Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05121842Third Party Advisory
https://www.samba.org/samba/security/CVE-2015-7560.htmlVendor Advisory

Timeline

Published: Mar 13, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-7560?

How severe is CVE-2015-7560?

CVE-2015-7560 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 12.70% probability of exploitation in the next 30 days.

How do I fix CVE-2015-7560?

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-2015-7560?

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

Scan your code now

Source: NVD / NIST