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Vulnerability details: VCID-q4d3-733j-dqd5
Vulnerability ID VCID-q4d3-733j-dqd5
Aliases CVE-2016-3163
GHSA-h3r9-pjmr-f938
Summary Drupal Brute force amplification attacks via XML-RPC The XML-RPC system in Drupal 6.x before 6.38 and 7.x before 7.43 might make it easier for remote attackers to conduct brute-force attacks via a large number of calls made at once to the same method.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-254 7PK - Security Features
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00855 https://api.first.org/data/v1/epss?cve=CVE-2016-3163
cvssv3.1 7.5 https://github.com/drupal/core
generic_textual HIGH https://github.com/drupal/core
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2016-3163.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2016-3163.yaml
cvssv3.1 7.5 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2016-3163.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2016-3163.yaml
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-3163
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2016-3163
cvssv3.1 7.5 https://www.drupal.org/SA-CORE-2016-001
generic_textual HIGH https://www.drupal.org/SA-CORE-2016-001
cvssv3.1 7.5 http://www.debian.org/security/2016/dsa-3498
generic_textual HIGH http://www.debian.org/security/2016/dsa-3498
cvssv3.1 7.5 http://www.openwall.com/lists/oss-security/2016/02/24/19
generic_textual HIGH http://www.openwall.com/lists/oss-security/2016/02/24/19
cvssv3.1 7.5 http://www.openwall.com/lists/oss-security/2016/03/15/10
generic_textual HIGH http://www.openwall.com/lists/oss-security/2016/03/15/10
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2016-3163
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3162
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3163
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3164
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3168
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3169
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3170
https://github.com/drupal/core
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2016-3163.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2016-3163.yaml
https://nvd.nist.gov/vuln/detail/CVE-2016-3163
https://www.drupal.org/SA-CORE-2016-001
http://www.debian.org/security/2016/dsa-3498
http://www.openwall.com/lists/oss-security/2016/02/24/19
http://www.openwall.com/lists/oss-security/2016/03/15/10
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/drupal/core
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2016-3163.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2016-3163.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2016-3163
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://www.drupal.org/SA-CORE-2016-001
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at http://www.debian.org/security/2016/dsa-3498
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at http://www.openwall.com/lists/oss-security/2016/02/24/19
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Found at http://www.openwall.com/lists/oss-security/2016/03/15/10
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.73948
EPSS Score 0.00855
Published At June 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-01T12:26:38.332157+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-h3r9-pjmr-f938/GHSA-h3r9-pjmr-f938.json 36.1.3