CVE-2023-54392 json
PocketMine-MP before 4.22.3 Denial of Service via BlockActorDataPacket
published 2023-07-14 3 y ago modified 2026-10-08 32 d ago also GHSA-7wrv-6h42-w54f , EUVD-2023-60622
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 45%
- public exploits
- 0
- none known
Summary
PocketMine-MP versions >= 4.20.0 before 4.22.3 (and before 5.2.1 in the 5.x branch) fail to validate NBT tag types in BlockActorDataPacket. A player can crash the server by sending a packet containing sign NBT data with an incorrect tag type, triggering an unhandled UnexpectedTagTypeException that terminates the server process.
Patch / fix
- packagist pocketmine/pocketmine-mp 4.22.3, 5.2.1
- pmmp PocketMine-MP 4.22.3, 5.2.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 51 d ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | pocketmine/pocketmine-mp | >=4.20.0, <4.22.3 >=5.0.0, <5.2.1 |
4.22.3 5.2.1 |
Affected products
- pmmp PocketMine-MP
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
github.com
/pmmp/PocketMine-MP/commit/0c250a2ef09627b48aa52302f6cc7e1f2afb70ea
patch, web
-
github.com
/pmmp/PocketMine-MP/security/advisories/GHSA-7wrv-6h42-w54f
vendor-advisory, web
-
vulncheck.com
/advisories/pocketmine-mp-before-4.22.3-denial-of-service-via-blockactordatapacket
third-party-advisory
-
github.com
/pmmp/PocketMine-MP
package
Sources
- CVE List CVE-2023-54392
- GitHub Advisory GHSA-7wrv-6h42-w54f
- NVD CVE-2023-54392
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