CVE-2020-17407

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-13 · updated 2026-06-17
Weakness: CWE-121

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 not required to exploit this vulnerability. The specific flaw exists within the handling of authentication headers. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10596.

Affected products

Microhard Bullet-LTE: before 1.2.0-r1112 — fixed in 1.2.0-r1112

How to fix

Upgrade to a fixed version: Microhard Bullet-LTE 1.2.0-r1112. Check the vendor advisory for mitigations.

References

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