CVE-2021-38111: Defcon Def Con 27 Firmware

High severity, CVSS 8.8. EPSS: 1.3% chance of exploitation in the next 30 days.

The DEF CON 27 badge allows remote attackers to exploit a buffer overflow by sending an oversized packet via the NFMI (Near Field Magnetic Induction) protocol.

Affected products

• Defcon Def Con 27 Firmware: affected versions not specified

Published 2021-08-04. Last modified 2026-06-17.