{"cve":"CVE-2016-3378","nvd":{"published":"2016-09-14T10:59:52.860","modified":"2026-06-17T00:45:35.043","status":"Modified","description":"Open redirect vulnerability in Microsoft Exchange Server 2013 SP1, 2013 Cumulative Update 12, 2013 Cumulative Update 13, 2016 Cumulative Update 1, and 2016 Cumulative Update 2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a crafted URL, aka \"Microsoft Exchange Open Redirect Vulnerability.\"","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N","score":7.4},"cwes":["CWE-20"],"references":["http://www.securityfocus.com/bid/92833","http://www.securitytracker.com/id/1036778","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-108","http://www.securityfocus.com/bid/92833","http://www.securitytracker.com/id/1036778"],"products":["microsoft:exchange_server"],"source":"nvd","synced_at":"2026-10-19T20:40:10.783210791+00:00"},"epss":{"cve":"CVE-2016-3378","score":0.15276,"percentile":0.96768,"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."]}