{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-106803", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-11-02T17:09:06.900Z", "dateReserved": "2026-10-07T00:00:00.000Z", "datePublished": "2026-11-02T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-11-02T17:09:06.900Z"}, "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow exists in Kamailio v6.1.3 and v6.1.4 in the ims_registrar_pcscf module. When processing a crafted application/reginfo+xml NOTIFY message, process_contact() copies an attacker-controlled port value from the alias parameter into a fixed 5-byte stack buffer without validating its length. An unauthenticated remote attacker can trigger stack corruption and terminate the P-CSCF process, resulting in denial of service."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/kamailio/kamailio/issues/4954"}, {"url": "https://github.com/kamailio/kamailio/pull/4958"}, {"url": "https://github.com/kamailio/kamailio/commit/21261436492f0014930e804e20586e3833bb91b9"}, {"url": "https://gist.github.com/hackeryounow/7d7ccc9ec501a5d8c9143b2e1bcc11cb"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A stack-based buffer overflow exists in Kamailio v6.1.3 and v6.1.4 in the ims_registrar_pcscf module. When processing a crafted application/reginfo+xml NOTIFY message, process_contact() copies an attacker-controlled port value from the alias parameter into a fixed 5-byte stack buffer without validating its length. An unauthenticated remote attacker can trigger stack corruption and terminate the P-CSCF process, resulting in denial of service."}], "id": "CVE-2026-106803", "lastModified": "2026-11-02T19:34:23.993", "metrics": {}, "published": "2026-11-02T17:17:33.270", "references": [{"source": "cve@mitre.org", "url": "https://gist.github.com/hackeryounow/7d7ccc9ec501a5d8c9143b2e1bcc11cb"}, {"source": "cve@mitre.org", "url": "https://github.com/kamailio/kamailio/commit/21261436492f0014930e804e20586e3833bb91b9"}, {"source": "cve@mitre.org", "url": "https://github.com/kamailio/kamailio/issues/4954"}, {"source": "cve@mitre.org", "url": "https://github.com/kamailio/kamailio/pull/4958"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.3,6.1.4]"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "kamailio", "vendor": "kamailio"}], "created": "2026-11-02T18:30:17.734114+00:00", "title": "Stack\u2011Based Buffer Overflow in Kamailio ims_registrar_pcscf Module Allowing Denial of Service", "updated": "2026-11-02T19:15:16.722632+00:00", "vendors": ["kamailio", "kamailio$PRODUCT$kamailio"], "weaknesses": ["CWE-121"]}