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CVE-2021-21903

CRITICALCVSS 9.8/10EPSS 1.73%

Last modified

CVE-2021-21903 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GarrettIc Module Cma5.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-21903?
CVE-2021-21903 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.
How do I fix CVE-2021-21903?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-21903?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST