What is CVE-2021-21903?

CVE-2021-21903 is a critical-severity vulnerability in Garrett Ic Module Cma, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-12-22.

How severe is CVE-2021-21903?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Garrett Ic Module Cma

CVE-2021-21903

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.

Vulnerability class: Buffer Overflow

EPSS: 0.017 (75.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Garrett Ic_module_cma — versions 5.0
N/a Garrett Metal Detectors — versions Garrett Metal Detectors iC Module CMA Version 5.0

Weakness classification (CWE)

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-21903?: CVE-2021-21903 is a critical-severity vulnerability in Garrett Ic Module Cma, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2021-12-22.
How severe is CVE-2021-21903?: Critical severity. CVSS v3 base score is 9.8 out of 10.