CVE-2021-33806
The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-33806- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-33806- Updated
- 2026-11-02
EUVDEUVD-2021-20483 No score
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.
- Record
EUVD-2021-20483- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8ww6-p355-pvjq No score
The BDew BdLib library before 1.16.1.7 for Minecraft allows remote code execution because it...
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.
- Record
GHSA-8ww6-p355-pvjq- Weakness
- CWE-502
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-33806- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33806 is a critical vulnerability (CVSS 9.8) in Bdew Bdlib, published June 3, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.98%, the 87th percentile. No source names a fixed version.