Vulnerability-Lookup

CVE-2023-54390 (GCVE-0-2023-54390)

Vulnerability from cvelistv5 – Published: 2026-09-09 13:31 – Updated: 2026-09-09 14:09

Title

PocketMine-MP before 5.3.1 Denial of Service via LoginPacket

Summary

PocketMine-MP versions before 5.3.1 and 4.23.1 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper null value handling in arrays. Attackers can send malformed JSON with unexpected null elements in LoginPacket to crash the server.

Severity

8.7 (High)


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

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 14:09 UTC

CWE

CWE-1025 - Comparison Using Wrong Factors

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/pmmp/PocketMine-MP/security/ad…	vendor-advisory
https://github.com/pmmp/PocketMine-MP/commit/4f90…	patch
https://www.vulncheck.com/advisories/pocketmine-m…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
pmmp	PocketMine-MP		guessed

Date Public

2023-09-13 00:00

Credits

alvin0319 dktapps

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2023-54390

Vulnerability from fkie_nvd - Published: 2026-09-09 14:17 - Updated: 2026-09-09 20:20

Severity

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

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/pmmp/PocketMine-MP/commit/4f90e8dab1c9df331fad7d3d89823404e882668c
	disclosure@vulncheck.com	https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-92jh-gwch-jq38
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/pocketmine-mp-before-5.3.1-denial-of-service-via-loginpacket

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "PocketMine-MP",
          "vendor": "pmmp"
        }
      ],
      "source": "disclosure@vulncheck.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PocketMine-MP versions before 5.3.1 and 4.23.1 contain a denial of service vulnerability in LoginPacket JSON parsing due to improper null value handling in arrays. Attackers can send malformed JSON with unexpected null elements in LoginPacket to crash the server."
    }
  ],
  "id": "CVE-2023-54390",
  "lastModified": "2026-09-09T20:20:21.673",
  "metrics": {
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          "confidentialityImpact": "NONE",
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          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
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        "type": "Secondary"
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    "cvssMetricV40": [
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          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "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",
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          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
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    }
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}

GHSA-Q3FF-JXCW-JC3J

Vulnerability from github – Published: 2026-09-09 15:35 – Updated: 2026-09-09 15:35

Details

Severity

7.5 (High)


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

8.7 (High)


                  
                    CVSS:4.0/AV:N/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-2023-54390"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1025"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T14:17:09Z",
    "severity": "HIGH"
  },
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  "id": "GHSA-q3ff-jxcw-jc3j",
  "modified": "2026-09-09T15:35:09Z",
  "published": "2026-09-09T15:35:09Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-92jh-gwch-jq38"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54390"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pmmp/PocketMine-MP/commit/4f90e8dab1c9df331fad7d3d89823404e882668c"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/pocketmine-mp-before-5.3.1-denial-of-service-via-loginpacket"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/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.
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-2023-54390 (GCVE-0-2023-54390)

FKIE_CVE-2023-54390

GHSA-Q3FF-JXCW-JC3J

Tags

Sightings

Nomenclature