← Vulnerability feed

Vulnerability record · CVE-2018-1140 · published 22 August 2018

CVE-2018-1140: Samba improper input validation vulnerability

Samba · Samba

A missing input sanitization flaw was found in the implementation of LDP database used for the LDAP server. An attacker could use this flaw to cause a denial of service against a samba server, used as a Active Directory Domain Controller. All versions of Samba from 4.8.0 onwards are vulnerable

6.5 CVSS 3.0 Medium EPSS 11% · top 4.3% CWE-20 · Improper input validation
6.5CVSS 3.0 base score, v2 3.3
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

A missing input sanitization flaw was found in the implementation of LDP database used for the LDAP server. An attacker could use this flaw to cause a denial of service against a samba server, used as a Active Directory Domain Controller. All versions of Samba from 4.8.0 onwards are vulnerable

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/105082 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1140 Issue TrackingPatchThird Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=13374 Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202003-52
https://security.netapp.com/advisory/ntap-20180814-0001/ Third Party Advisory
https://www.samba.org/samba/security/CVE-2018-1140.html PatchVendor Advisory
http://www.securityfocus.com/bid/105082 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1140 Issue TrackingPatchThird Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=13374 Issue TrackingPatchThird Party Advisory
https://security.gentoo.org/glsa/202003-52
https://security.netapp.com/advisory/ntap-20180814-0001/ Third Party Advisory
https://www.samba.org/samba/security/CVE-2018-1140.html PatchVendor Advisory

Track CVE-2018-1140 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-7494Samba writable share library upload leads to remote code executionSamba versions from 3.5.0 up to (but not including) 4.6.4, 4.5.10 and 4.4.14 allow a malicious client to upload a shared library to a writable share …KEVEPSS 99%analysed5.5CVE-2020-1472Microsoft Netlogon elevation of privilege via vulnerable secure channel (Zerologon)CVE-2020-1472 is an elevation of privilege flaw in Microsoft's Netlogon Remote Protocol (MS-NRPC) where an attacker can establish a vulnerable Netlog…KEVEPSS 99%analysed10.0CVE-2015-0240Samba Netlogon ServerPasswordSet RPC uninitialized pointer code executionSamba's smbd Netlogon server frees an uninitialized stack pointer when handling crafted ServerPasswordSet RPC requests. This memory corruption flaw a…EPSS 88%analysed10.0CVE-2012-1182Samba RPC code generator array length validation flaw allows remote code executionThe RPC code generator in Samba 3.x before 3.4.16, 3.5.x before 3.5.14, and 3.6.x before 3.6.4 validates an array length inconsistently with how it v…EPSS 74%analysed10.0CVE-2007-2446Samba smbd NDR parsing heap buffer overflows allow remote code executionSamba 3.0.0 through 3.0.25rc3 contains multiple heap-based buffer overflows in the NDR parsing code of smbd, reachable through crafted MS-RPC request…EPSS 78%analysed10.0CVE-2004-0882Samba vulnerabilityBuffer overflow in the QFILEPATHINFO request handler in Samba 3.0.x through 3.0.7 may allow remote attackers to execute arbitrary code via a TRANSACT…EPSS 14%10.0CVE-2004-1154Samba vulnerabilityInteger overflow in the Samba daemon (smbd) in Samba 2.x and 3.0.x through 3.0.9 allows remote authenticated users to cause a denial of service (appl…EPSS 13%10.0CVE-2004-0600Samba vulnerabilityBuffer overflow in the Samba Web Administration Tool (SWAT) in Samba 3.0.2 to 3.0.4 allows remote attackers to execute arbitrary code via an invalid …EPSS 29%

Source: NIST National Vulnerability Database (record CVE-2018-1140), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.