{"cve":"CVE-2016-5306","nvd":{"published":"2016-06-30T23:59:17.950","modified":"2026-06-17T00:49:11.027","status":"Modified","description":"Symantec Endpoint Protection Manager (SEPM) 12.1 before RU6 MP5 does not properly implement the HSTS protection mechanism, which makes it easier for remote attackers to obtain sensitive information by sniffing the network for unintended HTTP traffic on port 8445.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3},"cwes":["CWE-200","CWE-254"],"references":["http://www.securityfocus.com/bid/91449","http://www.securitytracker.com/id/1036196","https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20160628_01","http://www.securityfocus.com/bid/91449","http://www.securitytracker.com/id/1036196"],"products":["symantec:endpoint_protection_manager"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2016-5306","score":0.02076,"percentile":0.81482,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}