{"cve":"CVE-2011-1651","nvd":{"published":"2011-05-31T20:55:02.890","modified":"2026-06-16T23:29:45.007","status":"Modified","description":"Cisco IOS XR 3.9.x and 4.0.x before 4.0.3 and 4.1.x before 4.1.1, when an SPA interface processor is installed, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 packet, aka Bug ID CSCto45095.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f191.shtml","http://www.securitytracker.com/id?1025567","http://www.cisco.com/en/US/products/products_security_advisory09186a0080b7f191.shtml","http://www.securitytracker.com/id?1025567"],"products":["cisco:ios_xr"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-1651","score":0.0121,"percentile":0.68437,"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."]}