{"cve":"CVE-2011-2549","nvd":{"published":"2011-07-28T22:55:02.187","modified":"2026-06-16T23:31:34.687","status":"Modified","description":"Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://secunia.com/advisories/45333","http://securitytracker.com/id?1025811","http://www.cisco.com/en/US/products/products_security_advisory09186a0080b89155.shtml","http://www.securityfocus.com/bid/48811","https://exchange.xforce.ibmcloud.com/vulnerabilities/68733"],"products":["cisco:asr_9006_router","cisco:asr_9010_router","cisco:ios_xr"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-2549","score":0.01702,"percentile":0.77242,"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."]}