How severe is CVE-2019-9120?

CVE-2019-9120 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-9120 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9120?

CVE-2019-9120 primarily affects Motorola M2 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-9120?

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

When was CVE-2019-9120 published?

CVE-2019-9120 was published on 2019-03-07 and last updated on 2026-06-17.

CVE-2019-9120

CVE-2019-9120 is a critical-severity vulnerability in Motorola M2 Firmware with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Motorola M2 Firmware
Published: 2019-03-07
Last modified: 2026-06-17

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 SetWLanACLSettings API function, as demonstrated by shell metacharacters in the wl(0).(0)_maclist field.

Frequently asked questions

What is CVE-2019-9120?: 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 SetWLanACLSettings API function, as demonstrated by shell metacharacters in the wl(0).(0)_maclist field.
How severe is CVE-2019-9120?: CVE-2019-9120 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-9120 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9120?: CVE-2019-9120 primarily affects Motorola M2 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-9120?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-9120 published?: CVE-2019-9120 was published on 2019-03-07 and last updated on 2026-06-17.

References

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

Affected products (2)

cpe:2.3:o:motorola:m2_firmware:1.07:*:*:*:*:*:*:*
cpe:2.3:o:motorola:c1_firmware:1.01:*:*:*:*:*:*:*

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