CVE-2021-38111 describes a critical buffer overflow vulnerability in the DEF CON 27 badge and its firmware, exploitable by remote attackers. This high-severity flaw (CVSS 8.8) can be triggered by sending an oversized packet via the Near Field Magnetic Induction (NFMI) protocol, potentially leading to complete compromise (confidentiality, integrity, and availability). While no active exploitation, public exploit code, or significant community discussion has been observed, the vulnerability's nature warrants attention for affected devices.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:defcon:def_con_27_firmware:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/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, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.