CVE-2022-51015Network attack vector

Authenticated server crash via invalid facing values

Published Sep 7, 2026 · Updated Sep 8, 2026

Improper input validation in PocketMine-MP before 4.0.6 allows remote authenticated users to crash the server with crafted game packets. InGamePacketHandler passes unchecked facing values from block-breaking and item-use packets into block interaction routines instead of restricting them to valid faces. Reaching the flaw requires an authenticated game session; an invalid negative or out-of-range face interrupts the server without reported data disclosure or modification.

CVSS severity6.5
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in PocketMine-MP before 4.0.6 allows remote authenticated users to crash the server with crafted game packets. InGamePacketHandler passes unchecked facing values from block-breaking and item-use packets into block interaction routines instead of restricting them to valid faces. Reaching the flaw requires an authenticated game session; an invalid negative or out-of-range face interrupts the server without reported data disclosure or modification.

The record

CVE
CVE-2022-51015
Published
Sep 7, 2026
Updated
Sep 8, 2026
Vendor
PMMP
Product
PocketMine-MP
Classifications
CWE-20, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PMMP · PocketMine-MPversion=0 <4.0.6

Published CVSS scores

7.1VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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