{"cve":"CVE-2015-4226","nvd":{"published":"2015-06-30T15:59:17.700","modified":"2026-06-17T00:26:57.457","status":"Modified","description":"The packet-storing feature on Cisco 9900 phones with firmware 9.3(2) does not properly support the RTP protocol, which allows remote attackers to cause a denial of service (device hang) by sending malformed RTP packets after a call is answered, aka Bug ID CSCur39976.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://tools.cisco.com/security/center/viewAlert.x?alertId=39554","http://www.securityfocus.com/bid/75471","http://www.securitytracker.com/id/1032748","http://tools.cisco.com/security/center/viewAlert.x?alertId=39554","http://www.securityfocus.com/bid/75471"],"products":["cisco:unified_ip_phones_9900_series_firmware"],"source":"nvd","synced_at":"2026-10-19T20:36:40.444340523+00:00"},"epss":{"cve":"CVE-2015-4226","score":0.02754,"percentile":0.86233,"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."]}