{"cve":"CVE-2012-3863","nvd":{"published":"2012-07-09T10:20:44.823","modified":"2026-06-16T23:44:00.473","status":"Modified","description":"channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.13.1 and 10.x before 10.5.2, Asterisk Business Edition C.3.x before C.3.7.5, Certified Asterisk 1.8.11-certx before 1.8.11-cert4, and Asterisk Digiumphones 10.x.x-digiumphones before 10.5.2-digiumphones does not properly handle a provisional response to a SIP reINVITE request, which allows remote authenticated users to cause a denial of service (RTP port exhaustion) via sessions that lack final responses.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-399"],"references":["http://downloads.asterisk.org/pub/security/AST-2012-010.html","http://secunia.com/advisories/50687","http://secunia.com/advisories/50756","http://www.debian.org/security/2012/dsa-2550","http://www.securityfocus.com/bid/54327"],"products":["digium:asterisk","digium:asterisk_business_edition","digium:asteriske","digium:certified_asterisk"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2012-3863","score":0.03197,"percentile":0.8812,"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."]}