How severe is CVE-2020-17406?

CVE-2020-17406 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-17406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-17406?

CVE-2020-17406 affects Microhardcorp Bullet-lte Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-17406?

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-2020-17406 published?

CVE-2020-17406 was published on 2020-10-13 and last updated on 2026-06-17.

CVE-2020-17406

CVE-2020-17406 is a high-severity vulnerability in Microhardcorp Bullet-lte Firmware with a CVSS 3.x base score of 8.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Microhardcorp Bullet-lte Firmware
Published: 2020-10-13
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microhard Bullet-LTE prior to v1.2.0-r1112. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of the ping parameter provided to tools.sh. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10595.

Frequently asked questions

What is CVE-2020-17406?: This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microhard Bullet-LTE prior to v1.2.0-r1112. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of the ping parameter provided to tools.sh. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10595.
How severe is CVE-2020-17406?: CVE-2020-17406 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-17406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-17406?: CVE-2020-17406 affects Microhardcorp Bullet-lte Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-17406?: 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-2020-17406 published?: CVE-2020-17406 was published on 2020-10-13 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-20-1205/

Affected products (1)

cpe:2.3:o:microhardcorp:bullet-lte_firmware:*:*:*:*:*:*:*:*

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