What’s Vulnerable › Vulnerabilities

CVE-2019-9121

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-03-07 · updated 2026-06-17
• Weakness: CWE-78

Description

An issue was discovered on Motorola C1 and M2 devices with firmware 1.01 and 1.07 respectively. This issue is a Command Injection allowing a remote attacker to execute arbitrary code, and get a root shell. A command Injection vulnerability allows attackers to execute arbitrary OS commands via a crafted /HNAP1 POST request. This occurs when any HNAP API function triggers a call to the system function with untrusted input from the request body for the SetSmartQoSSettings API function, as demonstrated by shell metacharacters in the smartqos_priority_devices field.

Affected products

• Motorola C1 Firmware: 1.01
• Motorola M2 Firmware: 1.07

References

• https://github.com/lieanu/vuls/blob/master/motorola/M2_C1/SetSmartQoSSettings.md
• https://github.com/lieanu/vuls/blob/master/motorola/M2_C1/SetSmartQoSSettings.md

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