{"cve":"CVE-2015-4191","nvd":{"published":"2015-06-19T01:59:00.070","modified":"2026-06-17T00:26:53.707","status":"Modified","description":"Cisco IOS XR 5.2.1 allows remote attackers to cause a denial of service (ipv6_io service reload) via a malformed IPv6 packet, aka Bug ID CSCuq95565.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://tools.cisco.com/security/center/viewAlert.x?alertId=39383","http://www.securityfocus.com/bid/75260","http://www.securitytracker.com/id/1032615","http://tools.cisco.com/security/center/viewAlert.x?alertId=39383","http://www.securityfocus.com/bid/75260"],"products":["cisco:ios_xr"],"source":"nvd","synced_at":"2026-10-19T20:36:40.444340523+00:00"},"epss":{"cve":"CVE-2015-4191","score":0.02938,"percentile":0.87109,"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."]}