{"cve":"CVE-2017-6603","nvd":{"published":"2017-04-07T17:59:00.730","modified":"2026-06-17T01:22:37.583","status":"Modified","description":"A vulnerability in Cisco ASR 903 or ASR 920 Series Devices running with an RSP2 card could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on a targeted system because of incorrect IPv6 Packet Processing. More Information: CSCuy94366. Known Affected Releases: 15.4(3)S3.15. Known Fixed Releases: 15.6(2)SP 15.6(1.31)SP.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":[],"references":["http://www.securityfocus.com/bid/97450","http://www.securitytracker.com/id/1038185","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170405-asr","http://www.securityfocus.com/bid/97450","http://www.securitytracker.com/id/1038185"],"products":["cisco:asr_900_series_firmware"],"source":"nvd","synced_at":"2026-10-19T20:42:09.859288039+00:00"},"epss":{"cve":"CVE-2017-6603","score":0.00662,"percentile":0.51657,"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."]}