How severe is CVE-2019-9101?

CVE-2019-9101 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-9101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9101?

CVE-2019-9101 primarily affects Moxa Mb3170 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-9101?

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-2019-9101 published?

CVE-2019-9101 was published on 2020-03-11 and last updated on 2026-06-17.

CVE-2019-9101

CVE-2019-9101 is a high-severity vulnerability in Moxa Mb3170 Firmware with a CVSS 3.x base score of 7.5. 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-319.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Moxa Mb3170 Firmware
Published: 2020-03-11
Last modified: 2026-06-17

Description

An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. Sensitive information is sent to the web server in cleartext, which may allow an attacker to discover the credentials if they are able to observe traffic between the web browser and the server.

Frequently asked questions

What is CVE-2019-9101?: An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. Sensitive information is sent to the web server in cleartext, which may allow an attacker to discover the credentials if they are able to observe traffic between the web browser and the server.
How severe is CVE-2019-9101?: CVE-2019-9101 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-9101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9101?: CVE-2019-9101 primarily affects Moxa Mb3170 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-9101?: 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-2019-9101 published?: CVE-2019-9101 was published on 2020-03-11 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:moxa:mb3170_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mb3270_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mb3180_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mb3280_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mb3480_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mb3660_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Moxa Mb3170 Firmware

CVE-2019-9099 — Critical (CVSS 9.8): An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1,…
CVE-2019-9096 — Critical (CVSS 9.8): An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1,…
CVE-2019-9095 — Critical (CVSS 9.8): An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1,…
CVE-2019-9102 — High (CVSS 8.8): An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1,…
CVE-2019-9104 — High (CVSS 7.5): An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1,…
CVE-2019-9098 — High (CVSS 7.5): An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1,…

All CVEs affecting Moxa Mb3170 Firmware →

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