What is CVE-2023-54395?

CVE-2023-54395 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Inefficient Algorithmic Complexity. CVSS score: 4.3/10. Published 2026-09-09.

How severe is CVE-2023-54395?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Pmmp Pocketmine-Mp

CVE-2023-54395

PocketMine-MP versions before 4.12.5 contain a denial-of-service vulnerability in ModalFormResponsePacket processing that allows attackers to cause server resource exhaustion by sending large JSON payloads. Attackers can send numerous oversized modal form response packets to consume CPU time and prevent the server from processing legitimate connections.

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

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.003 (25.0th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Pmmp Pocketmine-Mp

Weakness classification (CWE)

CWE-407 — Inefficient Algorithmic Complexity

References

github.com/pmmp/PocketMine-MP/security/advisories/GHSA-7m9r-rq9j-wmmh (vendor-advisory)
github.com/pmmp/PocketMine-MP/commit/3baa5ab71214f96e6e7ab12cb9beef08118473b5 (patch)
www.vulncheck.com/advisories/pocketmine-mp-before-4.12.5-denial-of-service-via-… (third-party-advisory)

Frequently asked questions

What is CVE-2023-54395?: CVE-2023-54395 is a medium-severity vulnerability in Pmmp Pocketmine-Mp, classified under Inefficient Algorithmic Complexity. CVSS score: 4.3/10. Published 2026-09-09.
How severe is CVE-2023-54395?: Medium severity. CVSS v3 base score is 4.3 out of 10.