CVE-2007-5640

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"The Nortel UNIStim IP Softphone 2050, IP Phone 1140E, and additional Nortel products from the IP Phone, Business Communications Manager (BCM), Mobile Voice Client, and other product lines, allow remote attackers to block calls and force re-registration via a resume message to the Signaling Server that has a spoofed source IP address for the phone. NOTE: the attack is more disruptive if a new spoofed resume message is sent after each re-registration."}, {"lang": "es", "value": "El Nortel UNIStim IP Softphone 2050, IP Phone 1140E,y productos adicionales Nortel desde el IP Phone, Business Communications Manager (BCM), Mobile Voice Client, y otras l\u00edneas de producto, permite a atacantes remotos bloquear llamadas y forzar la re-registro a trav\u00e9s de un mensaje de reanudaci\u00f3n en Server que tiene un direcci\u00f3n IP fuente falsa para el tel\u00e9fono. NOTA: el atacantes es m\u00e1s destructivo si un nuevo mensaje de reanudaci\u00f3n falso es env\u00edado despu\u00e9s de cada re-registro."}], "id": "CVE-2007-5640", "lastModified": "2026-06-16T22:46:33.107", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}]}, "published": "2007-10-23T17:46:00.000", "references": [{"source": "cve@mitre.org", "url": "http://osvdb.org/41772"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/27234"}, {"source": "cve@mitre.org", "url": "http://securityreason.com/securityalert/3274"}, {"source": "cve@mitre.org", "tags": ["Patch"], "url": "http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654641"}, {"source": "cve@mitre.org", "tags": ["Exploit"], "url": "http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_forced_re-authentication_v1.0.txt"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/archive/1/482481/100/0/threaded"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/26124"}, {"source": "cve@mitre.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/37254"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/41772"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/27234"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://securityreason.com/securityalert/3274"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=654641"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://www.csnc.ch/static/advisory/csnc/nortel_IP_phone_forced_re-authentication_v1.0.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/archive/1/482481/100/0/threaded"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/26124"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/37254"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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