What is CVE-2016-3651?

CVE-2016-3651 is a high-severity vulnerability in Symantec Endpoint Protection Manager, classified under Information Disclosure. CVSS score: 8.0/10. Published 2016-06-30.

How severe is CVE-2016-3651?

High severity. CVSS v3 base score is 8.0 out of 10.

Information disclosure in Symantec Endpoint Protection Manager

CVE-2016-3651

Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 allows remote authenticated users to discover the PHP JSESSIONID value via unspecified vectors.

Vulnerability class: Information Disclosure

Published 2016-06-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Symantec Endpoint Protection Manager

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

www.symantec.com/security_response/securityupdates/detail.jsp (Vendor Advisory)
www.securitytracker.com/id/1036196 (vdb-entry)
www.securityfocus.com/bid/91445 (vdb-entry)

Frequently asked questions

What is CVE-2016-3651?: CVE-2016-3651 is a high-severity vulnerability in Symantec Endpoint Protection Manager, classified under Information Disclosure. CVSS score: 8.0/10. Published 2016-06-30.
How severe is CVE-2016-3651?: High severity. CVSS v3 base score is 8.0 out of 10.