CVE-2023-54392EPSS p29.2%
CVE-2023-54392CVE-2023-54392
Description
PocketMine-MP versions >= 4.20.0 before 4.22.3 (and before 5.2.1 in the 5.x branch) fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that terminates the server process.
Scoring
| CVSS | 6.5 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 0.38% probability of exploitation · percentile 29.2% · 2026-10-05T12:00:23Z |
| Last modified | 2026-09-30 |