CVE-2023-54355
Received
Received - Intake
PocketMine-MP LoginPacket ECDH Key Derivation Failure
Vulnerability report for CVE-2023-54355, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-09-09
Last updated on: 2026-09-09
Assigner: VulnCheck
Description
Description
PocketMine-MP versions before 5.3.1 and 4.23.1 fail to validate that the identityPublicKey in LoginPacket uses the required secp384r1 elliptic curve. Attackers can provide LoginPackets with keys using different curves or non-EC key types to pass login verification but trigger an uncaught exception during ECDH key derivation, crashing the server.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| pocketmine | pocketmine-mp | to 5.3.1|end_excluding=4.23.1 (exc) |
| pocketmine-mp | pocketmine-mp | to 5.3.1 (exc) |
| pocketmine-mp | pocketmine-mp | to 4.23.1 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-347 | The product does not verify, or incorrectly verifies, the cryptographic signature for data. |
