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Vulnerability record · CVE-2018-1057 · published 13 March 2018

CVE-2018-1057: Canonical ubuntu linux incorrect authorization vulnerability

Canonical · Ubuntu Linux

On a Samba 4 AD DC the LDAP server in all versions of Samba from 4.0.0 onwards incorrectly validates permissions to modify passwords over LDAP allowing authenticated users to change any other users' passwords, including administrative users and privileged service accounts (eg Domain Controllers).

8.8 CVSS 3.1 High EPSS 10% · top 4.5% CWE-863 · Incorrect authorization
8.8CVSS 3.1 base score, v2 6.5
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
20References
17 Jun 2026Last modified by NVD

Description

On a Samba 4 AD DC the LDAP server in all versions of Samba from 4.0.0 onwards incorrectly validates permissions to modify passwords over LDAP allowing authenticated users to change any other users' passwords, including administrative users and privileged service accounts (eg Domain Controllers).

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/103382 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040494 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1553553 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201805-07 Third Party Advisory
https://security.netapp.com/advisory/ntap-20180313-0001/ Third Party Advisory
https://usn.ubuntu.com/3595-1/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4135 Third Party Advisory
https://www.samba.org/samba/security/CVE-2018-1057.html MitigationVendor Advisory
https://www.synology.com/support/security/Synology_SA_18_08 Third Party Advisory
http://www.securityfocus.com/bid/103382 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040494 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1553553 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201805-07 Third Party Advisory
https://security.netapp.com/advisory/ntap-20180313-0001/ Third Party Advisory
https://usn.ubuntu.com/3595-1/ Third Party Advisory
https://www.debian.org/security/2018/dsa-4135 Third Party Advisory
https://www.samba.org/samba/security/CVE-2018-1057.html MitigationVendor Advisory
https://www.synology.com/support/security/Synology_SA_18_08 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-1057), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.