CVE-2022-51012

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-07. a secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.5
EG Score
6.5(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

September 7, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Sep 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit.
generic

PocketMine-MP before 4.2.9 Denial of Service via NBT Deserialization | Advisories | VulnCheck

https://www.vulncheck.com/advisories/pocketmine-mp-before-4.2.9-denial-of-service-via-nbt-deserialization
github Patch Available🟡 PoC Available

Insufficient type validation of NBT during decoding of network items for inventory transactions · Advisory · pmmp/PocketMine-MP · GitHub

Affected: 4.2.9 by commit

https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-g5rr-p69h-7v3g
github_commit

commit 5a98b08ee8dc (pmmp/PocketMine-MP)

Fix landed in pmmp/PocketMine-MP commit 5a98b08ee8dc — awaiting tagged release

https://github.com/pmmp/PocketMine-MP/commit/5a98b08ee8dc8ff14862cd83d2e4af9d212fefc2

Vendor Advisories for CVE-2022-51012(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
pocketmine/pocketmine-mp3.0.0 ... 4.2.8 (190 versions)4.2.9—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 21:53 UTCEG score recompute
  2. 2026-09-18 21:52 UTCGHSA enrichment
  3. 2026-09-17 23:56 UTCEG score recompute
  4. 2026-09-17 23:56 UTCGHSA enrichment
  5. 2026-09-17 01:52 UTCEG score recompute
  6. 2026-09-17 01:52 UTCGHSA enrichment
  7. 2026-09-16 14:05 UTCEPSS rescore
  8. 2026-09-16 05:11 UTCEPSS rescore
  9. 2026-09-16 03:55 UTCGHSA enrichment
  10. 2026-09-15 05:58 UTCEG score recompute
  11. 2026-09-15 05:58 UTCGHSA enrichment
  12. 2026-09-15 03:07 UTCEPSS rescore
  13. 2026-09-14 08:01 UTCEG score recompute
  14. 2026-09-14 08:01 UTCGHSA enrichment
  15. 2026-09-13 16:44 UTCEPSS rescore
  16. 2026-09-13 10:05 UTCEG score recompute
  17. 2026-09-13 10:05 UTCGHSA enrichment
  18. 2026-09-12 12:08 UTCEG score recompute
  19. 2026-09-12 12:08 UTCGHSA enrichment
  20. 2026-09-11 14:50 UTCEPSS rescore
  21. 2026-09-11 14:11 UTCEG score recompute
  22. 2026-09-11 14:11 UTCGHSA enrichment
  23. 2026-09-11 09:34 UTCEPSS rescore
  24. 2026-09-10 16:14 UTCEG score recompute
  25. 2026-09-10 16:14 UTCGHSA enrichment
Show 13 more
  1. 2026-09-09 18:10 UTCEG score recompute
  2. 2026-09-09 18:10 UTCGHSA enrichment
  3. 2026-09-08 21:57 UTCEPSS rescore
  4. 2026-09-08 20:13 UTCGHSA enrichment
  5. 2026-09-08 13:48 UTCEG score recompute
  6. 2026-09-08 13:48 UTCGHSA enrichment
  7. 2026-09-08 13:02 UTCEG score recompute
  8. 2026-09-08 13:01 UTCGHSA enrichment
  9. 2026-09-08 11:19 UTCEG score recompute
  10. 2026-09-08 11:18 UTCGHSA enrichment
  11. 2026-09-07 13:21 UTCEG score recompute
  12. 2026-09-07 13:04 UTCEG score recompute
  13. 2026-09-07 13:01 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-51012?
CVE-2022-51012 is a medium vulnerability published on September 7, 2026. 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.
When was CVE-2022-51012 disclosed?
CVE-2022-51012 was first published in the National Vulnerability Database on September 7, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-51012 actively exploited?
CVE-2022-51012 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.7% of all scored CVEs.
What is the CVSS score of CVE-2022-51012?
CVE-2022-51012 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2022-51012?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-51012, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-51012

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