How severe is CVE-2021-21909?

CVE-2021-21909 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2021-21909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21909?

CVE-2021-21909 affects Garrett Ic Module Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-21909?

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-2021-21909 published?

CVE-2021-21909 was published on 2021-12-22 and last updated on 2026-06-17.

CVE-2021-21909

CVE-2021-21909 is a high-severity vulnerability in Garrett Ic Module Firmware with a CVSS 3.x base score of 8.1. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 5.5
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Garrett Ic Module Firmware
Published: 2021-12-22
Last modified: 2026-06-17

Description

Specially-crafted command line arguments can lead to arbitrary file deletion in the del .cnt|.log file delete command. An attacker can provide malicious inputs to trigger this vulnerability

Frequently asked questions

What is CVE-2021-21909?: Specially-crafted command line arguments can lead to arbitrary file deletion in the del .cnt|.log file delete command. An attacker can provide malicious inputs to trigger this vulnerability
How severe is CVE-2021-21909?: CVE-2021-21909 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2021-21909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21909?: CVE-2021-21909 affects Garrett Ic Module Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-21909?: 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-2021-21909 published?: CVE-2021-21909 was published on 2021-12-22 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1359

Affected products (1)

cpe:2.3:o:garrett:ic_module_firmware:5.0:*:*:*:*:*:*:*

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