CVE-2023-54390

PocketMine-MP before 5.3.1 Denial of Service via LoginPacket

Published Sep 9, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Pmmp
Pmmp pocketmine-mp
Vendors & Products Pmmp
Pmmp pocketmine-mp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title PocketMine-MP before 5.3.1 Denial of Service via LoginPacket
Weaknesses CWE-1025
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 8, 2026, 3:21 PM
Reserved
Sep 1, 2026, 11:04 AM
Status
Deferred
Published
Sep 9, 2026, 2:17 PM
Modified
Oct 8, 2026, 4:16 PM