Vulnerability-Lookup

CVE-2018-25368 (GCVE-0-2018-25368)

Vulnerability from cvelistv5 – Published: 2026-05-25 14:15 – Updated: 2026-05-26 15:22

Title

Nord VPN 6.14.31 Denial of Service via Password Field

Summary

Nord VPN 6.14.31 contains a denial of service vulnerability that allows unauthenticated attackers to crash the application by submitting an excessively long string in the password field. Attackers can paste a buffer of repeated characters into the password input field to trigger an application crash when attempting to authenticate.

Severity

8.7 (High)


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

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-789 - Memory Allocation with Excessive Size Value

Assigner

VulnCheck

References

3 references

URL	Tags
https://www.exploit-db.com/exploits/45304	exploit
https://nordvpn.com/download/	product
https://www.vulncheck.com/advisories/nord-vpn-den…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Nordvpn	NordVPN	Affected: 0 , ≤ 6.14.31 (semver)

Date Public

2018-08-30 00:00

Credits

L0RD (borna nematzadeh)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2018-25368

Vulnerability from fkie_nvd - Published: 2026-05-25 15:16 - Updated: 2026-06-17 01:55

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://nordvpn.com/download/
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/45304
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/nord-vpn-denial-of-service-via-password-field

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "NordVPN",
          "vendor": "Nordvpn",
          "versions": [
            {
              "lessThanOrEqual": "6.14.31",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
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    }
  ],
  "cveTags": [],
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    }
  ],
  "id": "CVE-2018-25368",
  "lastModified": "2026-06-17T01:55:19.730",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
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        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
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          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
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      "url": "https://nordvpn.com/download/"
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  "vulnStatus": "Deferred",
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        {
          "lang": "en",
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      ],
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    }
  ]
}

GHSA-X9HX-HWFF-3M7W

Vulnerability from github – Published: 2026-05-26 13:30 – Updated: 2026-05-26 13:30

Details

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

8.7 (High)


                  
                    CVSS:4.0/AV:N/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-2018-25368"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-789"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-25T15:16:19Z",
    "severity": "HIGH"
  },
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  "id": "GHSA-x9hx-hwff-3m7w",
  "modified": "2026-05-26T13:30:44Z",
  "published": "2026-05-26T13:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-25368"
    },
    {
      "type": "WEB",
      "url": "https://nordvpn.com/download"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/45304"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/nord-vpn-denial-of-service-via-password-field"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/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.

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.

Action not permitted

CVE-2018-25368 (GCVE-0-2018-25368)

FKIE_CVE-2018-25368

GHSA-X9HX-HWFF-3M7W

Tags

Sightings

Nomenclature