{"cve":"CVE-2016-6465","nvd":{"published":"2016-12-14T00:59:04.547","modified":"2026-06-17T00:51:11.620","status":"Modified","description":"A vulnerability in the content filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances and Cisco Web Security Appliances could allow an unauthenticated, remote attacker to bypass user filters that are configured for an affected device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for both virtual and hardware versions of the following Cisco products: Cisco Email Security Appliances (ESAs) that are configured to use message or content filters that scan incoming email attachments; Cisco Web Security Appliances (WSAs) that are configured to use services that scan accessed web content. More Information: CSCva90076, CSCvb06764. Known Affected Releases: 10.0.0-125 8.5.7-042 9.7.2-047.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-20"],"references":["http://www.securityfocus.com/bid/94901","http://www.securitytracker.com/id/1037404","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-esa","http://www.securityfocus.com/bid/94901","http://www.securitytracker.com/id/1037404"],"products":["cisco:email_security_appliance"],"source":"nvd","synced_at":"2026-10-19T20:41:25.729257544+00:00"},"epss":{"cve":"CVE-2016-6465","score":0.01556,"percentile":0.75176,"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."]}