Vulnerability-Lookup

GHSA-GQ3V-7FCG-VGJC

Vulnerability from github – Published: 2026-10-01 18:32 – Updated: 2026-10-01 18:32

Details

Successful exploitation may temporarily make HTTPS management functions unavailable. Repeated malformed requests may sustain the denial-of-service condition, and recovery may in some cases require a device reboot.

Severity

7.1 (High)


                  
                    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-9032"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-01T18:17:29Z",
    "severity": "HIGH"
  },
  "details": "Tapo C120 v1 and C200 v5\ncontain a NULL pointer dereference in the HTTPS onboarding connect request parser.\u00a0 The interface is reachable without\nauthentication after initial setup and does not validate that a password field\nis present for certain authentication and encryption parameter combinations,\nallowing a malformed request from the same local network to crash the HTTPS service\n\n\n\n\n\n\n\n\n\n\n\u00a0Successful exploitation may\ntemporarily make HTTPS management functions unavailable. Repeated malformed\nrequests may sustain the denial-of-service condition, and recovery may in some\ncases require a device reboot.",
  "id": "GHSA-gq3v-7fcg-vgjc",
  "modified": "2026-10-01T18:32:48Z",
  "published": "2026-10-01T18:32:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9032"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5321"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-9032 (GCVE-0-2026-9032)

Vulnerability from cvelistv5 – Published: 2026-10-01 17:41 – Updated: 2026-10-01 17:41

Title

Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 & C200

Summary

Tapo C120 v1 and C200 v5 contain a NULL pointer dereference in the HTTPS onboarding connect request parser. The interface is reachable without authentication after initial setup and does not validate that a password field is present for certain authentication and encryption parameter combinations, allowing a malformed request from the same local network to crash the HTTPS service Successful exploitation may temporarily make HTTPS management functions unavailable. Repeated malformed requests may sustain the denial-of-service condition, and recovery may in some cases require a device reboot.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CWE

CWE-476 - NULL pointer dereference

Assigner

TPLink mitre root Scorecard

References

5 references

URL	Tags
https://www.tp-link.com/us/support/download/tapo-…	patch
https://www.tp-link.com/en/support/download/tapo-…	patch
https://www.tp-link.com/us/support/download/tapo-…	patch
https://www.tp-link.com/en/support/download/tapo-…	patch
https://www.tp-link.com/us/support/faq/5321/	vendor-advisory

Impacted products

2 products

Vendor	Product	Version
TP-Link Systems Inc.	Tapo C200 V5	Affected: 0 , < V5_1.4.6 Build 260709 Rel.27675n (custom)
TP-Link Systems Inc.	Tapo C120 V1	Affected: 0 , < V1_1.9.4 Build 260813 Rel.79754n (custom)

Credits

Thai Do (Lio) and Khoi Tran (KayTii) from OPSWAT

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Tapo C200 V5",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "V5_1.4.6 Build 260709 Rel.27675n",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Tapo C120 V1",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "V1_1.9.4 Build 260813 Rel.79754n",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Thai Do (Lio) and Khoi Tran (KayTii) from OPSWAT"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eTapo C120 v1 and C200 v5\ncontain a NULL pointer dereference in the HTTPS onboarding connect request parser.\u0026nbsp; The interface is reachable without\nauthentication after initial setup and does not validate that a password field\nis present for certain authentication and encryption parameter combinations,\nallowing a malformed request from the same local network to crash the HTTPS service\n\u003c/p\u003e\u003cp\u003e\n\n\u003c/p\u003e\u003cp\u003e\u003cb\u003e\u0026nbsp;\u003c/b\u003eSuccessful exploitation may\ntemporarily make HTTPS management functions unavailable. Repeated malformed\nrequests may sustain the denial-of-service condition, and recovery may in some\ncases require a device reboot.\u003c/p\u003e"
            }
          ],
          "value": "Tapo C120 v1 and C200 v5\ncontain a NULL pointer dereference in the HTTPS onboarding connect request parser.\u00a0 The interface is reachable without\nauthentication after initial setup and does not validate that a password field\nis present for certain authentication and encryption parameter combinations,\nallowing a malformed request from the same local network to crash the HTTPS service\n\n\n\n\n\n\n\n\n\n\n\u00a0Successful exploitation may\ntemporarily make HTTPS management functions unavailable. Repeated malformed\nrequests may sustain the denial-of-service condition, and recovery may in some\ncases require a device reboot."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-100",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-100 Overflow Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-476",
              "description": "CWE-476 NULL pointer dereference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-01T17:41:31.004Z",
        "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "shortName": "TPLink"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/us/support/download/tapo-c200/v5/#Firmware-Release-Notes"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/en/support/download/tapo-c200/v5/#Firmware-Release-Notes"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/us/support/download/tapo-c120/v1.26/#Firmware-Release-Notes"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/en/support/download/tapo-c120/v1.26/#Firmware-Release-Notes"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.tp-link.com/us/support/faq/5321/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerability in TP-Link Tapo C120 \u0026 C200",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
    "assignerShortName": "TPLink",
    "cveId": "CVE-2026-9032",
    "datePublished": "2026-10-01T17:41:31.004Z",
    "dateReserved": "2026-05-19T16:30:36.090Z",
    "dateUpdated": "2026-10-01T17:41:31.004Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-GQ3V-7FCG-VGJC

CVE-2026-9032 (GCVE-0-2026-9032)

Tags

Sightings

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