CVE-2021-38111
CVSS v3
8.8
HIGH
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
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.
Technical details
- Published
- 2021-08-04
Frequently asked questions
What is CVE-2021-38111?
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.
Is CVE-2021-38111 actively exploited?
Active exploitation of CVE-2021-38111 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-38111?
CVE-2021-38111 has a CVSS v3 base score of 8.8 (HIGH severity).
Is CVE-2021-38111 affecting your environment?
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