{"cve":"CVE-2011-1507","nvd":{"published":"2011-04-27T00:55:04.523","modified":"2026-06-16T23:29:30.960","status":"Modified","description":"Asterisk Open Source 1.4.x before 1.4.40.1, 1.6.1.x before 1.6.1.25, 1.6.2.x before 1.6.2.17.3, and 1.8.x before 1.8.3.3 and Asterisk Business Edition C.x.x before C.3.6.4 do not restrict the number of unauthenticated sessions to certain interfaces, which allows remote attackers to cause a denial of service (file descriptor exhaustion and disk space exhaustion) via a series of TCP connections.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://downloads.digium.com/pub/security/AST-2011-005.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058922.html","http://lists.fedoraproject.org/pipermail/package-announce/2011-May/059702.html","http://secunia.com/advisories/44197","http://secunia.com/advisories/44529"],"products":["digium:asterisk"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-1507","score":0.02504,"percentile":0.84728,"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."]}