What is CVE-2020-37277?

CVE-2020-37277 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-09-06.

How severe is CVE-2020-37277?

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

Resource exhaustion in Pmmp Pocketmine-Mp

CVE-2020-37277

PocketMine-MP versions before 3.15.4 contain a denial of service vulnerability in the InventoryTransaction component's findResultItem() method. Malicious clients can send specially crafted InventoryTransactionPackets with multiple conflicting pathways to cause exponential processing complexity, freezing the server.

Vulnerability class: DoS (Denial of Service)

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.

Affected products

Pmmp Pocketmine-mp

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2020-37277?: CVE-2020-37277 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-09-06.
How severe is CVE-2020-37277?: Medium severity. CVSS v3 base score is 6.5 out of 10.