{
    "id": "CVE-2007-5636",
    "published": "2007-10-23 17:46:00",
    "last_modified": "2026-06-16 22:46:32",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
    "cwe": "CWE-119",
    "description": "Buffer overflow in the Nortel UNIStim IP Softphone 2050 allows remote attackers to cause a denial of service (application abort) and possibly execute arbitrary code via a flood of invalid characters to the RTCP port (5678/udp) that triggers a Windows error message, aka \"extraneous messaging.\"",
    "epss_score": "0.06685",
    "epss_percentile": "0.93712",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-05 18:17:06",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "nortel",
            "product": "ip_softphone_2050"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "30678",
            "title": "Nortel Networks UNIStim IP SoftPhone 2050 - RTCP Port Buffer Overflow",
            "date": "2007-10-18",
            "url": "https://www.exploit-db.com/exploits/30678"
        }
    ],
    "refs_list": [
        "http://osvdb.org/38521",
        "http://secunia.com/advisories/27252",
        "http://securityreason.com/securityalert/3271",
        "http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=655203",
        "http://www.csnc.ch/static/advisory/csnc/nortel_UNIStim_IP_softphone_buffer-overflow_v1.0.txt",
        "http://www.securityfocus.com/archive/1/482476/100/0/threaded",
        "http://www.securityfocus.com/bid/26118",
        "http://www.vupen.com/english/advisories/2007/3540",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/37256",
        "http://osvdb.org/38521",
        "http://secunia.com/advisories/27252",
        "http://securityreason.com/securityalert/3271",
        "http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=655203",
        "http://www.csnc.ch/static/advisory/csnc/nortel_UNIStim_IP_softphone_buffer-overflow_v1.0.txt",
        "http://www.securityfocus.com/archive/1/482476/100/0/threaded",
        "http://www.securityfocus.com/bid/26118",
        "http://www.vupen.com/english/advisories/2007/3540",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/37256"
    ]
}