CVE-2021-33806
9.8
CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it deserializes untrusted data in ObjectInputStream.readObject as part of its use of Java serialization.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 2.98% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-502 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-06-03 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| bdew | bdlib |
References
- https://bdew.net
- https://github.com/bdew-minecraft/bdlib/commit/447210530ceec72fb3374efecb0930ed359d2297
- https://vuln.ryotak.me/advisories/46
- https://www.curseforge.com/minecraft/mc-mods/bdlib/files/3331330
- https://bdew.net
- https://github.com/bdew-minecraft/bdlib/commit/447210530ceec72fb3374efecb0930ed359d2297
- https://vuln.ryotak.me/advisories/46
- https://www.curseforge.com/minecraft/mc-mods/bdlib/files/3331330
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