FKIE_CVE-2025-8939

Vulnerability from fkie_nvd - Published: 2025-08-14 06:15 - Updated: 2025-08-19 18:35
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability was determined in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/WifiGuestSet. The manipulation of the argument shareSpeed leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
References
cna@vuldb.comhttps://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.mdExploit, Third Party Advisory
cna@vuldb.comhttps://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.md#3-pocExploit, Third Party Advisory
cna@vuldb.comhttps://vuldb.com/?ctiid.319902Permissions Required, VDB Entry
cna@vuldb.comhttps://vuldb.com/?id.319902Third Party Advisory, VDB Entry
cna@vuldb.comhttps://vuldb.com/?submit.631829Third Party Advisory, VDB Entry
cna@vuldb.comhttps://www.tenda.com.cn/Product
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/lin-3-start/lin-cve/blob/main/Tenda%20AC20/Tenda%20AC20.mdExploit, Third Party Advisory
Impacted products
Vendor Product Version
tenda ac20_firmware *
tenda ac20 -
To clipboard 

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              "versionEndIncluding": "16.03.08.12",
              "versionStartIncluding": "16.03.08.0",
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  "cveTags": [],
  "descriptions": [
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      "value": "A vulnerability was determined in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/WifiGuestSet. The manipulation of the argument shareSpeed leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 una vulnerabilidad en Tenda AC20 hasta la versi\u00f3n 16.03.08.12. Se ve afectada una funci\u00f3n desconocida del archivo /goform/WifiGuestSet. La manipulaci\u00f3n del argumento shareSpeed provoca un desbordamiento del b\u00fafer. El ataque puede ejecutarse en remoto. Se ha hecho p\u00fablico el exploit y puede que sea utilizado."
    }
  ],
  "id": "CVE-2025-8939",
  "lastModified": "2025-08-19T18:35:22.420",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.0,
          "confidentialityImpact": "COMPLETE",
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        "type": "Secondary",
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          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
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          "scope": "UNCHANGED",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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    "cvssMetricV40": [
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          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
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          "valueDensity": "NOT_DEFINED",
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          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
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  "published": "2025-08-14T06:15:28.913",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-119"
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          "value": "CWE-120"
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      "source": "cna@vuldb.com",
      "type": "Secondary"
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}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.