Vulnerability-Lookup

CVE-2026-102812 (GCVE-0-2026-102812)

Vulnerability from cvelistv5 – Published: 2026-10-27 17:40 – Updated: 2026-10-27 17:40

Title

Hardcoded AES-128 Key and Fixed IV in Configuration Backup Encryption in TP-Link RE305 and Archer C7

Summary

A hard-coded cryptographic key vulnerability exists in the user-configuration backup mechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and initialization vector are embedded in the firmware configuration-management component. An attacker who obtains an affected configuration backup file may extract the cryptographic material from the firmware and use it to decrypt the backup. Successful exploitation may disclose sensitive configuration information contained in a backup file, including administrator passwords and Wi-Fi credentials.

Severity

6.9 (Medium)


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

CWE

CWE-321 - Use of hard-coded cryptographic key

Assigner

TPLink CNA under the mitre root

CNA scorecard B 87/100 over 106 records in the last 180 days details

References

5 references

URL	Tags
https://www.tp-link.com/us/support/download/re305…	patch
https://www.tp-link.com/en/support/download/re305…	patch
https://www.tp-link.com/en/support/download/arche…	patch
https://www.tp-link.com/us/support/download/arche…	patch
https://www.tp-link.com/us/support/faq/5362/	vendor-advisory

Impacted products

2 products

Vendor	Product	Version	CPE status
TP-Link Systems Inc.	RE305 v3	Affected: 0 , < 1.1.8 Build 20260921 Rel. 42853 (custom)	guessed
TP-Link Systems Inc.	Archer C7 v5	Affected: 0 , < 1.3.1 Build 20260821 Rel. 41256 (custom)	guessed

Credits

Victor Mota

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "RE305 v3",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.1.8 Build 20260921 Rel. 42853",
              "status": "affected",
              "version": "0",
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        {
          "defaultStatus": "unaffected",
          "product": "Archer C7 v5",
          "vendor": "TP-Link Systems Inc.",
          "versions": [
            {
              "lessThan": "1.3.1 Build 20260821 Rel. 41256",
              "status": "affected",
              "version": "0",
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            }
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      "credits": [
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          "type": "finder",
          "value": "Victor Mota"
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              "value": "\u003cp\u003eA hard-coded\ncryptographic key vulnerability exists in the user-configuration backup\nmechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and\ninitialization vector are embedded in the firmware configuration-management\ncomponent. An attacker who obtains an affected configuration backup file may\nextract the cryptographic material from the firmware and use it to decrypt the\nbackup.\u0026nbsp;\u003c/p\u003e\u003cp\u003e\n\n\u003c/p\u003e\u003cp\u003eSuccessful\nexploitation may disclose sensitive configuration information contained in a\nbackup file, including administrator passwords and Wi-Fi credentials.\u0026nbsp;\u003c/p\u003e"
            }
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          "value": "A hard-coded\ncryptographic key vulnerability exists in the user-configuration backup\nmechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and\ninitialization vector are embedded in the firmware configuration-management\ncomponent. An attacker who obtains an affected configuration backup file may\nextract the cryptographic material from the firmware and use it to decrypt the\nbackup.\u00a0\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may disclose sensitive configuration information contained in a\nbackup file, including administrator passwords and Wi-Fi credentials."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-37",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-37 Retrieve Embedded Sensitive Data"
            }
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      "metrics": [
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          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
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            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
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              "value": "GENERAL"
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          "descriptions": [
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              "cweId": "CWE-321",
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      "providerMetadata": {
        "dateUpdated": "2026-10-27T17:40:13.729Z",
        "orgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "shortName": "TPLink"
      },
      "references": [
        {
          "tags": [
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          "url": "https://www.tp-link.com/us/support/download/re305/v3/#Firmware"
        },
        {
          "tags": [
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          "url": "https://www.tp-link.com/en/support/download/re305/v3/#Firmware"
        },
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          "url": "https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware"
        },
        {
          "tags": [
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          "url": "https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware"
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      "source": {
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      "title": "Hardcoded AES-128 Key and Fixed IV in Configuration Backup Encryption in TP-Link RE305 and Archer C7",
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    "assignerShortName": "TPLink",
    "cveId": "CVE-2026-102812",
    "datePublished": "2026-10-27T17:40:13.729Z",
    "dateReserved": "2026-09-29T17:18:44.960Z",
    "dateUpdated": "2026-10-27T17:40:13.729Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "RE305 v3",
                "vendor": "TP-Link Systems Inc.",
                "versions": [
                  {
                    "lessThan": "1.1.8 Build 20260921 Rel. 42853",
                    "status": "affected",
                    "version": "0",
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                ]
              },
              {
                "defaultStatus": "unaffected",
                "product": "Archer C7 v5",
                "vendor": "TP-Link Systems Inc.",
                "versions": [
                  {
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                    "status": "affected",
                    "version": "0",
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                  }
                ]
              }
            ],
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630"
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        "cveTags": [],
        "descriptions": [
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            "lang": "en",
            "value": "A hard-coded\ncryptographic key vulnerability exists in the user-configuration backup\nmechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and\ninitialization vector are embedded in the firmware configuration-management\ncomponent. An attacker who obtains an affected configuration backup file may\nextract the cryptographic material from the firmware and use it to decrypt the\nbackup.\u00a0\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may disclose sensitive configuration information contained in a\nbackup file, including administrator passwords and Wi-Fi credentials."
          }
        ],
        "id": "CVE-2026-102812",
        "lastModified": "2026-10-27T18:17:29.517",
        "metrics": {
          "cvssMetricV40": [
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                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "LOCAL",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 6.9,
                "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:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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",
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                "vulnConfidentialityImpact": "HIGH",
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                "vulnerabilityResponseEffort": "NOT_DEFINED"
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            "url": "https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware"
          },
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/en/support/download/re305/v3/#Firmware"
          },
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware"
          },
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/us/support/download/re305/v3/#Firmware"
          },
          {
            "source": "f23511db-6c3e-4e32-a477-6aa17d310630",
            "url": "https://www.tp-link.com/us/support/faq/5362/"
          }
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        "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630",
        "vulnStatus": "Received",
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              {
                "lang": "en",
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            "type": "Secondary"
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}

GHSA-XGV8-3VJ8-53Q7

Vulnerability from github – Published: 2026-10-27 18:31 – Updated: 2026-10-27 18:31

Details

Successful exploitation may disclose sensitive configuration information contained in a backup file, including administrator passwords and Wi-Fi credentials.

Severity

6.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-102812"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-321"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-27T18:17:29Z",
    "severity": "MODERATE"
  },
  "details": "A hard-coded\ncryptographic key vulnerability exists in the user-configuration backup\nmechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and\ninitialization vector are embedded in the firmware configuration-management\ncomponent. An attacker who obtains an affected configuration backup file may\nextract the cryptographic material from the firmware and use it to decrypt the\nbackup.\u00a0\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation may disclose sensitive configuration information contained in a\nbackup file, including administrator passwords and Wi-Fi credentials.",
  "id": "GHSA-xgv8-3vj8-53q7",
  "modified": "2026-10-27T18:31:48Z",
  "published": "2026-10-27T18:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-102812"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/re305/v3/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/re305/v3/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5362"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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