{"id":"CVE-2023-54396","title":"PocketMine-MP versions before 4.8.1 fail to validate dye color IDs in banner NBT data during deserialization","summary":"PocketMine-MP versions before 4.8.1 fail to validate dye color IDs in banner NBT data during deserialization. Attackers can provide invalid color values in inventory transactions or via commands to trigger undefined offset errors and cra…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-129"],"vendor":"pmmp","product":"PocketMine-MP","affected":["PocketMine-MP < 4.8.1"],"published":"2026-09-09","updated":"2026-09-09","sourceUpdated":"2026-09-09T20:20:21.673","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-54396","references":[{"url":"https://github.com/pmmp/PocketMine-MP/commit/08b9495bce2d65a6d1d3eeb76e484499a00765eb","label":"disclosure@vulncheck.com"},{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-wqqv-jcfr-9f5g","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-4.8.1-server-crash-via-banner-nbt","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-09T14:10:39.674626Z"},"ingestedAt":"2026-09-09T14:11:29.381Z","epss":0.00376,"epssPercentile":0.31342,"slug":"CVE-2023-54396","body":"## Overview\n\nPocketMine-MP versions before 4.8.1 fail to validate dye color IDs in banner NBT data during deserialization. Attackers can provide invalid color values in inventory transactions or via commands to trigger undefined offset errors and crash the server.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}