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CVE-2025-12207

Estado: ModificadaBaja (1.9)—

A vulnerability has been found in Kamailio 5.5. This affects the function yyerror_at of the file src/core/cfg.y of the component Grammar Rule Handler. Such manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. The actual existence of this vulnerability is currently in question. This attack requires manipulating config files which might not be a realistic scenario in many cases. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Kamailio — Kamailio

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-12207",
  "cveTags": [
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      "tags": [
        "disputed"
      ],
      "sourceIdentifier": "cna@vuldb.com"
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  "metrics": {
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        "ssvcData": {
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          "options": [
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          "version": "2.0.3",
          "timestamp": "2025-10-28T13:59:16.896381Z"
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          "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P",
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        "obtainAllPrivilege": false,
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          "valueDensity": "NOT_DEFINED",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
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          "modifiedAttackVector": "NOT_DEFINED",
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          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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      "affectedData": [
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          "cpes": [
            "cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*"
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          "vendor": "n/a",
          "modules": [
            "Grammar Rule Handler"
          ],
          "product": "Kamailio",
          "versions": [
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              "version": "5.5"
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      "source": "cna@vuldb.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "cna@vuldb.com",
      "description": [
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          "lang": "en",
          "value": "CWE-404"
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  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been found in Kamailio 5.5. This affects the function yyerror_at of the file src/core/cfg.y of the component Grammar Rule Handler. Such manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. The actual existence of this vulnerability is currently in question. This attack requires manipulating config files which might not be a realistic scenario in many cases. The vendor was contacted early about this disclosure but did not respond in any way."
    }
  ],
  "lastModified": "2026-06-17T08:31:53.713",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kamailio:kamailio:5.5.0:*:*:*:*:*:*:*",
              "vulnerable": true,
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            }
          ],
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        }
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  ],
  "sourceIdentifier": "cna@vuldb.com"
}