Vulnerability-Lookup

CVE-2026-18330 (GCVE-0-2026-18330)

Vulnerability from cvelistv5 – Published: 2026-09-03 22:24 – Updated: 2026-09-03 22:24

Title

Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4

Summary

A hard-coded cryptographic key vulnerability exists in the web module of TP-Link Archer AX55 v4. A LAN attacker who captures an HTTP login session may use the known shared RSA private key to decrypt the administrator password; the weakened AES session key further reduces the effort required to compromise session confidentiality. Successful exploitation may disclose the administrator password captured from an HTTP login session and compromise session confidentiality.

Severity

6.1 (Medium)


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

CWE

CWE-321 - Use of hard-coded cryptographic key

Assigner

TPLink mitre root

References

2 references

URL	Tags
https://www.tp-link.com/us/support/download/arche…	patch
https://www.tp-link.com/us/support/faq/5279/	vendor-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
TP-Link Systems Inc.	Archer AX55 v4	Affected: 0 , < 1.2.1 Build 20260527 (custom)	guessed

Credits

Tianchang Yang and Syed Rafiul Hussain (SyNSec Lab, Penn State University)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "web"
          ],
          "product": "Archer AX55 v4",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.2.1 Build 20260527",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Tianchang Yang and Syed Rafiul Hussain (SyNSec Lab, Penn State University)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eA hard-coded\ncryptographic key vulnerability exists in the\u0026nbsp;web module of TP-Link Archer\nAX55 v4. A LAN attacker who captures an HTTP login session may use the known\nshared RSA private key to decrypt the\u0026nbsp;administrator\u0026nbsp;password; the\nweakened AES session key further reduces the effort\u0026nbsp;required\u0026nbsp;to\ncompromise session confidentiality.\u003c/p\u003e\n\n\u003cp\u003eSuccessful\nexploitation may disclose the administrator password captured from an HTTP\nlogin session and compromise session confidentiality.\u0026nbsp;\u003c/p\u003e\u003cp\u003e\u003cbr\u003e\u003c/p\u003e"
            }
          ],
          "value": "A hard-coded\ncryptographic key vulnerability exists in the\u00a0web module of TP-Link Archer\nAX55 v4. A LAN attacker who captures an HTTP login session may use the known\nshared RSA private key to decrypt the\u00a0administrator\u00a0password; the\nweakened AES session key further reduces the effort\u00a0required\u00a0to\ncompromise session confidentiality.\n\n\n\n\n\nSuccessful\nexploitation may disclose the administrator password captured from an HTTP\nlogin session and compromise session confidentiality."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-117",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-117 Interception"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "ADJACENT",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "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:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "LOW",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-321",
              "description": "CWE-321 Use of hard-coded cryptographic key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-03T22:24:45.430Z",
        "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "shortName": "TPLink"
      },
      "references": [
        {
          "tags": [
            "patch"
          ],
          "url": "https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmware"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.tp-link.com/us/support/faq/5279/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4",
      "x_generator": {
        "engine": "Vulnogram 1.0.4"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
    "assignerShortName": "TPLink",
    "cveId": "CVE-2026-18330",
    "datePublished": "2026-09-03T22:24:45.430Z",
    "dateReserved": "2026-07-29T20:03:53.524Z",
    "dateUpdated": "2026-09-03T22:24:45.430Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-18330\",\"sourceIdentifier\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"published\":\"2026-09-03T23:17:19.400\",\"lastModified\":\"2026-09-03T23:17:19.400\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A hard-coded\\ncryptographic key vulnerability exists in the\u00a0web module of TP-Link Archer\\nAX55 v4. A LAN attacker who captures an HTTP login session may use the known\\nshared RSA private key to decrypt the\u00a0administrator\u00a0password; the\\nweakened AES session key further reduces the effort\u00a0required\u00a0to\\ncompromise session confidentiality.\\n\\n\\n\\n\\n\\nSuccessful\\nexploitation may disclose the administrator password captured from an HTTP\\nlogin session and compromise session confidentiality.\"}],\"affected\":[{\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"affectedData\":[{\"vendor\":\"TP-Link Systems Inc.\",\"product\":\"Archer AX55 v4\",\"defaultStatus\":\"unaffected\",\"modules\":[\"web\"],\"versions\":[{\"version\":\"0\",\"lessThan\":\"1.2.1 Build 20260527\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/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\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-321\"}]}],\"references\":[{\"url\":\"https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmware\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"},{\"url\":\"https://www.tp-link.com/us/support/faq/5279/\",\"source\":\"f23511db-6c3e-4e32-a477-6aa17d310630\"}]}}"
  }
}

FKIE_CVE-2026-18330

Vulnerability from fkie_nvd - Published: 2026-09-03 23:17 - Updated: 2026-09-03 23:17

Severity

6.1 (Medium) - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmware
	f23511db-6c3e-4e32-a477-6aa17d310630	https://www.tp-link.com/us/support/faq/5279/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "web"
          ],
          "product": "Archer AX55 v4",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.2.1 Build 20260527",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A hard-coded\ncryptographic key vulnerability exists in the\u00a0web module of TP-Link Archer\nAX55 v4. A LAN attacker who captures an HTTP login session may use the known\nshared RSA private key to decrypt the\u00a0administrator\u00a0password; the\nweakened AES session key further reduces the effort\u00a0required\u00a0to\ncompromise session confidentiality.\n\n\n\n\n\nSuccessful\nexploitation may disclose the administrator password captured from an HTTP\nlogin session and compromise session confidentiality."
    }
  ],
  "id": "CVE-2026-18330",
  "lastModified": "2026-09-03T23:17:19.400",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "ADJACENT",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "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": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "LOW",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-03T23:17:19.400",
  "references": [
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmware"
    },
    {
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "url": "https://www.tp-link.com/us/support/faq/5279/"
    }
  ],
  "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-321"
        }
      ],
      "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
      "type": "Secondary"
    }
  ]
}

GHSA-6X43-G54R-9P4X

Vulnerability from github – Published: 2026-09-04 00:31 – Updated: 2026-09-04 00:31

Details

Successful exploitation may disclose the administrator password captured from an HTTP login session and compromise session confidentiality.

Severity

6.1 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-18330"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-321"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-03T23:17:19Z",
    "severity": "MODERATE"
  },
  "details": "A hard-coded\ncryptographic key vulnerability exists in the\u00a0web module of TP-Link Archer\nAX55 v4. A LAN attacker who captures an HTTP login session may use the known\nshared RSA private key to decrypt the\u00a0administrator\u00a0password; the\nweakened AES session key further reduces the effort\u00a0required\u00a0to\ncompromise session confidentiality.\n\n\n\n\n\nSuccessful\nexploitation may disclose the administrator password captured from an HTTP\nlogin session and compromise session confidentiality.",
  "id": "GHSA-6x43-g54r-9p4x",
  "modified": "2026-09-04T00:31:06Z",
  "published": "2026-09-04T00:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18330"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5279"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/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"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-18330 (GCVE-0-2026-18330)

FKIE_CVE-2026-18330

GHSA-6X43-G54R-9P4X

Tags

Sightings

Nomenclature