How severe is CVE-2019-9103?

CVE-2019-9103 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-9103 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9103?

CVE-2019-9103 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-2019-9103?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-9103 published?

CVE-2019-9103 was published on 2020-03-11 and last updated on 2026-06-17.

CVE-2019-9103

CVE-2019-9103 is a medium-severity vulnerability in Moxa Mb3170 Firmware with a CVSS 3.x base score of 5.3. 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
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. An attacker can access sensitive information (e.g., conduct username disclosure attacks) on the built-in WEB-service without authorization.

Frequently asked questions

What is CVE-2019-9103?: 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. An attacker can access sensitive information (e.g., conduct username disclosure attacks) on the built-in WEB-service without authorization.
How severe is CVE-2019-9103?: CVE-2019-9103 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-9103 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9103?: CVE-2019-9103 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-2019-9103?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-9103 published?: CVE-2019-9103 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-2019-9101 — 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,…

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