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Vulnerability record · CVE-2016-3648 · published 30 June 2016

CVE-2016-3648: Symantec endpoint protection manager information exposure vulnerability

Symantec · Endpoint Protection Manager

Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 allows remote authenticated users to bypass the Authentication Lock protection mechanism, and conduct brute-force password-guessing attacks against management-console accounts, by entering data into the authorization window.

8.8 CVSS 3.0 High EPSS 2.3% · top 17.1% CWE-200 · Information exposureCWE-254 · CWE-254
8.8CVSS 3.0 base score, v2 4.0
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 allows remote authenticated users to bypass the Authentication Lock protection mechanism, and conduct brute-force password-guessing attacks against management-console accounts, by entering data into the authorization window.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/91441
http://www.securitytracker.com/id/1036196
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year= Vendor Advisory
http://www.securityfocus.com/bid/91441
http://www.securitytracker.com/id/1036196
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year= Vendor Advisory

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Related vulnerabilities

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

8.8CVE-2016-3650Symantec endpoint protection manager information exposure vulnerabilitySymantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 allows remote authenticated users to discover credentials via a brute-force attack.EPSS 1.5%8.8CVE-2015-8154Symantec endpoint protection manager permissions and access controls vulnerabilityThe SysPlant.sys driver in the Application and Device Control (ADC) component in the client in Symantec Endpoint Protection (SEP) 12.1 before RU6-MP4…EPSS 5.0%8.8CVE-2015-8153Symantec endpoint protection manager sql injection vulnerabilitySQL injection vulnerability in Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6-MP4 allows remote authenticated users to execute arbitrary…EPSS 3.1%8.5CVE-2015-6555Symantec endpoint protection manager code injection vulnerabilitySymantec Endpoint Protection Manager (SEPM) 12.1 before 12.1-RU6-MP3 allows remote attackers to execute arbitrary Java code by connecting to the cons…EPSS 2.8%8.5CVE-2015-1492Symantec endpoint protection manager improper input validation vulnerabilityUntrusted search path vulnerability in the client in Symantec Endpoint Protection 12.1 before 12.1-RU6-MP1 allows local users to gain privileges via …EPSS 1.7%8.5CVE-2015-1489Symantec endpoint protection manager permissions and access controls vulnerabilityThe management console in Symantec Endpoint Protection Manager (SEPM) 12.1 before 12.1-RU6-MP1 allows remote authenticated users to gain privileges v…EPSS 25%8.0CVE-2016-3653Symantec endpoint protection manager cross-site request forgery vulnerabilityMultiple cross-site request forgery (CSRF) vulnerabilities in management scripts in Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 a…EPSS 1.3%8.0CVE-2016-3651Symantec endpoint protection manager information exposure vulnerabilitySymantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 allows remote authenticated users to discover the PHP JSESSIONID value via unspecifie…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2016-3648), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.