{"cve":"CVE-2015-4217","nvd":{"published":"2015-06-26T10:59:04.343","modified":"2026-06-17T00:26:56.490","status":"Modified","description":"The remote-support feature on Cisco Web Security Virtual Appliance (WSAv), Email Security Virtual Appliance (ESAv), and Security Management Virtual Appliance (SMAv) devices before 2015-06-25 uses the same default SSH host keys across different customers' installations, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging knowledge of a private key from another installation, aka Bug IDs CSCus29681, CSCuu95676, and CSCuu96601.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-200","CWE-310"],"references":["http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150625-ironport","http://tools.cisco.com/security/center/viewAlert.x?alertId=39461","http://www.securityfocus.com/bid/75418","http://www.securitytracker.com/id/1032725","http://www.securitytracker.com/id/1032726"],"products":["cisco:content_security_management_virtual_appliance","cisco:email_security_virtual_appliance","cisco:web_security_virtual_appliance"],"source":"nvd","synced_at":"2026-10-19T20:36:40.444340523+00:00"},"epss":{"cve":"CVE-2015-4217","score":0.02225,"percentile":0.82716,"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."]}