# CVE-2021-48007

## Summary

- **CVE ID:** CVE-2021-48007
- **Severity:** HIGH
- **CVSS Score:** 7.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-20
- **Published:** Sep 6, 2026
- **Last Modified:** Sep 9, 2026

## Description

PocketMine-MP versions before 3.18.1 fail to validate NaN or INF values in MovePlayerPacket position and rotation fields. Malicious clients can send crafted movement packets with invalid floating-point values to crash servers through unhandled mathematical operations or prevent clients from rendering other players.

## Affected Products

- pmmp — PocketMine-MP (0)
- pmmp — PocketMine-MP (3.18.1)

## References

- [CNA](https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-fm35-jgg3-3grx)
- [CNA](https://github.com/pmmp/PocketMine-MP/commit/fb20bb38327b4c08ee3976640cd0dd547388a638)
- [CNA](https://www.vulncheck.com/advisories/pocketmine-mp-before-3.18.1-denial-of-service-via-moveplayerpacket)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.29%
- **EPSS Percentile:** 22.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._