CVE-2021-33806 describes a critical remote code execution vulnerability in the BDew BdLib library for Minecraft, affecting versions prior to 1.16.1.7. This flaw stems from the library's use of Java serialization, specifically its deserialization of untrusted data via ObjectInputStream.readObject. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low complexity, allowing an unauthenticated attacker to achieve complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, its high severity and straightforward exploitability warrant attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.16.1.7CPE matchmatch criteria | cpe:2.3:a:bdew:bdlib:*:*:*:*:*:minecraft:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.