What is CVE-2022-51012?

CVE-2022-51012 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-09-07.

How severe is CVE-2022-51012?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in Pmmp Pocketmine-Mp

CVE-2022-51012

PocketMine-MP versions before 4.2.9 fail to properly validate NBT data types during deserialization of inventory transaction packets from clients. Attackers can send crafted inventory transactions with malformed NBT tags to trigger server crashes and cause denial of service.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-09-07 · last modified 2026-10-08.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (42.4th percentile), scored 2026-10-22.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Pmmp Pocketmine-Mp

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g5rr-p69h-7v3g (vendor-advisory)
github.com/pmmp/PocketMine-MP/commit/5a98b08ee8dc8ff14862cd83d2e4af9d212fefc2 (patch)
www.vulncheck.com/advisories/pocketmine-mp-before-4.2.9-denial-of-service-via-n… (third-party-advisory)

Frequently asked questions

What is CVE-2022-51012?: CVE-2022-51012 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2026-09-07.
How severe is CVE-2022-51012?: Medium severity. CVSS v3 base score is 6.5 out of 10.