How severe is CVE-2021-21905?

CVE-2021-21905 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21905 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21905?

CVE-2021-21905 affects Garrett Ic Module Cma. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21905?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-21905 published?

CVE-2021-21905 was published on 2021-12-22 and last updated on 2026-06-17.

CVE-2021-21905

CVE-2021-21905 is a high-severity vulnerability in Garrett Ic Module Cma with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 8.5
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Garrett Ic Module Cma
Published: 2021-12-22
Last modified: 2026-06-17

Description

Stack-based buffer overflow vulnerability exists in how the CMA readfile function of Garrett Metal Detectors iC Module CMA Version 5.0 is used at various locations. The Garrett iC Module exposes an authenticated CLI over TCP port 6877. This interface is used by a secondary GUI client, called “CMA Connect”, to interact with the iC Module on behalf of the user. After a client successfully authenticates, they can send plaintext commands to manipulate the device.

Frequently asked questions

What is CVE-2021-21905?: Stack-based buffer overflow vulnerability exists in how the CMA readfile function of Garrett Metal Detectors iC Module CMA Version 5.0 is used at various locations. The Garrett iC Module exposes an authenticated CLI over TCP port 6877. This interface is used by a secondary GUI client, called “CMA Connect”, to interact with the iC Module on behalf of the user. After a client successfully authenticates, they can send plaintext commands to manipulate the device.
How severe is CVE-2021-21905?: CVE-2021-21905 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21905 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21905?: CVE-2021-21905 affects Garrett Ic Module Cma. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21905?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-21905 published?: CVE-2021-21905 was published on 2021-12-22 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1357

Affected products (1)

cpe:2.3:o:garrett:ic_module_cma:5.0:*:*:*:*:*:*:*

More vulnerabilities in Garrett Ic Module Cma

CVE-2021-21903 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC…
CVE-2021-21901 — High (CVSS 8.8): A stack-based buffer overflow vulnerability exists in the CMA check_udp_crc function of Garrett Metal Detectors’ iC…
CVE-2021-21902 — High (CVSS 8.1): An authentication bypass vulnerability exists in the CMA run_server_6877 functionality of Garrett Metal Detectors iC…
CVE-2021-21906 — High (CVSS 7.2): Stack-based buffer overflow vulnerability exists in how the CMA readfile function of Garrett Metal Detectors iC Module…
CVE-2021-21904 — High (CVSS 7.2): A directory traversal vulnerability exists in the CMA CLI setenv command of Garrett Metal Detectors’ iC Module CMA…
CVE-2021-21907 — Medium (CVSS 4.9): A directory traversal vulnerability exists in the CMA CLI getenv command functionality of Garrett Metal Detectors’ iC…

All CVEs affecting Garrett Ic Module Cma →

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