FKIE_CVE-2025-67189

Vulnerability from fkie_nvd - Published: 2026-02-03 18:16 - Updated: 2026-02-10 14:15
Severity ?
6.5 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution.
References
cve@mitre.orghttps://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A950RG/5024-setParentRules-urlKeyWord-buffer.mdExploit, Third Party Advisory
Impacted products
Vendor Product Version
totolink a950rg_firmware 4.1.2cu.5204_b20210112
totolink a950rg -
To clipboard 

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      "value": "A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de desbordamiento de b\u00fafer en la interfaz setParentalRules de TOTOLINK A950RG V4.1.2cu.5204_B20210112. El par\u00e1metro urlKeyword no se valida correctamente, y la funci\u00f3n concatena m\u00faltiples campos controlados por el usuario en un b\u00fafer de pila de tama\u00f1o fijo sin realizar comprobaciones de l\u00edmites. Un atacante remoto puede explotar esta falla para causar denegaci\u00f3n de servicio o potencialmente lograr ejecuci\u00f3n de c\u00f3digo arbitrario."
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  "id": "CVE-2025-67189",
  "lastModified": "2026-02-10T14:15:24.380",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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  "published": "2026-02-03T18:16:16.393",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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