CVE-2021-21903

9.8 criticalEPSS 1.8%

Critical (9.8) in garrett ic module cma. EPSS 1.8% chance of exploitation in the next 30 days.

A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC Module CMA Version 5.0. A specially-crafted packet can lead to a stack-based buffer overflow during a call to strcpy. An attacker can send a malicious packet to trigger this vulnerability.

Severity

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

EPSS: 1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)
CWEs: CWE-787, CWE-120
Published: 2021-12-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

garrett:ic_module_cma

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1355
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1355

Check your stack JSON