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Vulnerability record · CVE-2015-7560 · published 13 March 2016

CVE-2015-7560: Samba improper access control vulnerability

Samba · Samba

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.

6.5 CVSS 3.1 Medium EPSS 13% · top 3.8% CWE-284 · Improper access control
6.5CVSS 3.1 base score, v2 4.0
13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
38References
17 Jun 2026Last modified by NVD

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.

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

Affected products

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

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178730.html Mailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178764.html Mailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/180000.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00064.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00065.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00081.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00090.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00092.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html Mailing ListThird Party Advisory
http://www.debian.org/security/2016/dsa-3514 Third Party Advisory
http://www.securityfocus.com/bid/84267 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1035220 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2922-1 Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=11648 Issue TrackingVendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05121842 Third Party Advisory
https://www.samba.org/samba/security/CVE-2015-7560.html Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178730.html Mailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178764.html Mailing ListThird Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-March/180000.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00064.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00065.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00081.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00090.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00092.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html Mailing ListThird Party Advisory
http://www.debian.org/security/2016/dsa-3514 Third Party Advisory
http://www.securityfocus.com/bid/84267 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1035220 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2922-1 Third Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=11648 Issue TrackingVendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05121842 Third Party Advisory
https://www.samba.org/samba/security/CVE-2015-7560.html Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2015-7560), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.