Vulnerability-Lookup

CVE-2018-25423 (GCVE-0-2018-25423)

Vulnerability from cvelistv5 – Published: 2026-05-30 14:55 – Updated: 2026-06-01 13:48

Title

Arm Whois 3.11 Denial of Service via Buffer Overflow

Summary

Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized input string. Attackers can paste a malicious buffer of 700 bytes into the IP address or domain input field to trigger a denial of service condition.

Severity

6.9 (Medium)


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

6.2 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Assigner

VulnCheck

References

4 references

URL	Tags
https://www.exploit-db.com/exploits/45762	exploit
http://www.armcode.com/	product
http://www.armcode.com/downloads/arm-whois.exe	product
https://www.vulncheck.com/advisories/arm-whois-de…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Armcode	Arm Whois	Affected: 3.11

Date Public

2018-10-31 00:00

Credits

Yair Rodríguez Aparicio

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2018-25423

Vulnerability from fkie_nvd - Published: 2026-05-30 16:17 - Updated: 2026-07-22 07:10

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	http://www.armcode.com/
	disclosure@vulncheck.com	http://www.armcode.com/downloads/arm-whois.exe
	disclosure@vulncheck.com	https://www.exploit-db.com/exploits/45762
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/arm-whois-denial-of-service-via-buffer-overflow

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Arm Whois",
          "vendor": "Armcode",
          "versions": [
            {
              "status": "affected",
              "version": "3.11"
            }
          ]
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized input string. Attackers can paste a malicious buffer of 700 bytes into the IP address or domain input field to trigger a denial of service condition."
    },
    {
      "lang": "es",
      "value": "Arm Whois 3.11 contiene una vulnerabilidad de desbordamiento de b\u00fafer que permite a atacantes locales bloquear la aplicaci\u00f3n al proporcionar una cadena de entrada sobredimensionada. Los atacantes pueden pegar un b\u00fafer malicioso de 700 bytes en el campo de entrada de la direcci\u00f3n IP o del dominio para desencadenar una condici\u00f3n de denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2018-25423",
  "lastModified": "2026-07-22T07:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 6.2,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
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          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
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          "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",
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          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
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          "options": [
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            },
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            },
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            }
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  "published": "2026-05-30T16:17:03.577",
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      "url": "http://www.armcode.com/"
    },
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      "url": "http://www.armcode.com/downloads/arm-whois.exe"
    },
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    },
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    }
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  "vulnStatus": "Deferred",
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    {
      "description": [
        {
          "lang": "en",
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}

GHSA-MV86-8F26-GW3X

Vulnerability from github – Published: 2026-05-30 18:31 – Updated: 2026-05-30 18:31

Details

Severity

6.2 (Medium)


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

6.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2018-25423"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-120"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-30T16:17:03Z",
    "severity": "MODERATE"
  },
  "details": "Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized input string. Attackers can paste a malicious buffer of 700 bytes into the IP address or domain input field to trigger a denial of service condition.",
  "id": "GHSA-mv86-8f26-gw3x",
  "modified": "2026-05-30T18:31:00Z",
  "published": "2026-05-30T18:31:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-25423"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/45762"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/arm-whois-denial-of-service-via-buffer-overflow"
    },
    {
      "type": "WEB",
      "url": "http://www.armcode.com"
    },
    {
      "type": "WEB",
      "url": "http://www.armcode.com/downloads/arm-whois.exe"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/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"
    }
  ]
}

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-2018-25423 (GCVE-0-2018-25423)

FKIE_CVE-2018-25423

GHSA-MV86-8F26-GW3X

Tags

Sightings

Nomenclature