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Vulnerability record · CVE-2017-12316 · published 16 November 2017

CVE-2017-12316: Cisco identity services engine software improper authentication vulnerability

Cisco · Identity Services Engine Software

A vulnerability in the Guest Portal login page of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to perform multiple login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Guest Portal login page. An exploit could allow the attacker to perform brute-force password attacks on the ISE Guest Portal. Cisco Bug IDs: CSCve98518.

7.5 CVSS 3.0 High EPSS 2.0% · top 19.7% CWE-287 · Improper authenticationCWE-307 · Improper restriction of authentication attempts
7.5CVSS 3.0 base score, v2 5.0
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A vulnerability in the Guest Portal login page of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to perform multiple login attempts in excess of the configured login attempt limit. The vulnerability is due to insufficient server-side login attempt limit enforcement. An attacker could exploit this vulnerability by sending modified login attempts to the Guest Portal login page. An exploit could allow the attacker to perform brute-force password attacks on the ISE Guest Portal. Cisco Bug IDs: CSCve98518.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/101931 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039830 Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-ise Vendor Advisory
http://www.securityfocus.com/bid/101931 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039830 Third Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-ise Vendor Advisory

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Related vulnerabilities

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

10.0CVE-2011-3290Cisco identity services engine vulnerabilityCisco Identity Services Engine (ISE) before 1.0.4.MR2 has default Oracle database credentials, which allows remote attackers to modify settings or pe…EPSS 2.3%9.8CVE-2015-6323Cisco identity services engine software vulnerabilityThe Admin portal in Cisco Identity Services Engine (ISE) 1.1.x, 1.2.0 before patch 17, 1.2.1 before patch 8, 1.3 before patch 5, and 1.4 before patch…EPSS 3.0%9.0CVE-2013-5530Cisco identity services engine software os command injection vulnerabilityThe web framework in Cisco Identity Services Engine (ISE) 1.0 and 1.1.0 before 1.1.0.665-5, 1.1.1 before 1.1.1.268-7, 1.1.2 before 1.1.2.145-10, 1.1.…EPSS 2.3%8.8CVE-2018-0413Cisco identity services engine software cross-site request forgery vulnerabilityA vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cond…EPSS 1.2%8.8CVE-2017-3835Cisco identity services engine software sql injection vulnerabilityA vulnerability in the sponsor portal of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to access notices owned b…EPSS 1.8%7.5CVE-2016-1402Cisco identity services engine software memory buffer overflow vulnerabilityThe Active Directory (AD) integration component in Cisco Identity Service Engine (ISE) before 1.2.0.899 patch 7, when AD group-membership authorizati…EPSS 2.0%6.8CVE-2015-4267Cisco identity services engine software cross-site request forgery vulnerabilityCross-site request forgery (CSRF) vulnerability in the web framework in Cisco Identity Services Engine (ISE) 1.2(0.793), 1.3(0.876), 1.4(0.109), 2.0(…EPSS 1.00%6.8CVE-2013-5540Cisco identity services engine software vulnerabilityThe file-upload feature in Cisco Identity Services Engine (ISE) allows remote authenticated users to cause a denial of service (disk consumption and …EPSS 1.1%

Source: NIST National Vulnerability Database (record CVE-2017-12316), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.