Vulnerability-Lookup

GHSA-6VQQ-HCVJ-CX94

Vulnerability from github – Published: 2026-07-14 21:32 – Updated: 2026-07-14 21:32

Details

Successful exploitation may result in disclosure of authentication credentials, enabling unauthorized access to device management functions, depending on the privileges associated with the recovered password. The primary security impact is loss of confidentiality.

Severity

7.1 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-5040"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-916"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-14T19:18:03Z",
    "severity": "HIGH"
  },
  "details": "TP-Link Deco M5 v1 uses a weak password hashing mechanism to store user credentials.  An attacker who obtains the password hash through system compromise or privileged access could perform brute-force or dictionary attacks.\n\nSuccessful exploitation may result in disclosure of authentication credentials, enabling unauthorized access to device management functions, depending on the privileges associated with the recovered password. The primary security impact is loss of confidentiality.",
  "id": "GHSA-6vqq-hcvj-cx94",
  "modified": "2026-07-14T21:32:16Z",
  "published": "2026-07-14T21:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-5040"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/en/support/download/deco-m5/v1/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/download/deco-m5/v1/#Firmware"
    },
    {
      "type": "WEB",
      "url": "https://www.tp-link.com/us/support/faq/5190"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/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-2026-5040 (GCVE-0-2026-5040)

Vulnerability from cvelistv5 – Published: 2026-07-14 18:00 – Updated: 2026-07-15 10:27

Title

Weak Password Hashing Mechanism in TP-Link Deco M5

Summary

TP-Link Deco M5 v1 uses a weak password hashing mechanism to store user credentials. An attacker who obtains the password hash through system compromise or privileged access could perform brute-force or dictionary attacks. Successful exploitation may result in disclosure of authentication credentials, enabling unauthorized access to device management functions, depending on the privileges associated with the recovered password. The primary security impact is loss of confidentiality.

Severity

7.1 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-916 - Use of Password Hash With Insufficient Computational Effort

Assigner

TPLink

References

3 references

URL	Tags
https://www.tp-link.com/us/support/download/deco-…
https://www.tp-link.com/en/support/download/deco-…
https://www.tp-link.com/us/support/faq/5190/

Impacted products

1 product

Vendor	Product	Version
TP-Link Systems Inc.	Deco M5 Deco M5 V1	Affected: 0 , < 1.9.4 Build 20260312 Rel.17129 (custom)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-5040",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-15T04:01:00.675503Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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          "product": "Deco M5 Deco M5 V1",
          "vendor": "TP-Link Systems Inc.",
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              "lessThan": "1.9.4 Build 20260312 Rel.17129",
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        }
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      "impacts": [
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      "metrics": [
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          "cvssV4_0": {
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "HIGH",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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      "providerMetadata": {
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      },
      "references": [
        {
          "url": "https://www.tp-link.com/us/support/download/deco-m5/v1/#Firmware"
        },
        {
          "url": "https://www.tp-link.com/en/support/download/deco-m5/v1/#Firmware"
        },
        {
          "url": "https://www.tp-link.com/us/support/faq/5190/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Weak Password Hashing Mechanism in TP-Link Deco M5",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "f23511db-6c3e-4e32-a477-6aa17d310630",
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    "dateReserved": "2026-03-27T16:26:49.615Z",
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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.

Action not permitted

GHSA-6VQQ-HCVJ-CX94

CVE-2026-5040 (GCVE-0-2026-5040)

Tags

Sightings

Nomenclature