How severe is CVE-2022-27048?

CVE-2022-27048 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2022-27048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27048?

CVE-2022-27048 primarily affects Moxa Mgate Mb3170i Firmware. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-27048?

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-2022-27048 published?

CVE-2022-27048 was published on 2022-04-15 and last updated on 2026-06-17.

CVE-2022-27048

CVE-2022-27048 is a high-severity vulnerability in Moxa Mgate Mb3170i Firmware with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Moxa Mgate Mb3170i Firmware
Published: 2022-04-15
Last modified: 2026-06-17

Description

A vulnerability has been discovered in Moxa MGate which allows an attacker to perform a man-in-the-middle (MITM) attack on the device. This affects MGate MB3170 Series Firmware Version 4.2 or lower. and MGate MB3270 Series Firmware Version 4.2 or lower. and MGate MB3280 Series Firmware Version 4.1 or lower. and MGate MB3480 Series Firmware Version 3.2 or lower.

Frequently asked questions

What is CVE-2022-27048?: A vulnerability has been discovered in Moxa MGate which allows an attacker to perform a man-in-the-middle (MITM) attack on the device. This affects MGate MB3170 Series Firmware Version 4.2 or lower. and MGate MB3270 Series Firmware Version 4.2 or lower. and MGate MB3280 Series Firmware Version 4.1 or lower. and MGate MB3480 Series Firmware Version 3.2 or lower.
How severe is CVE-2022-27048?: CVE-2022-27048 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2022-27048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27048?: CVE-2022-27048 primarily affects Moxa Mgate Mb3170i Firmware. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-27048?: 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-2022-27048 published?: CVE-2022-27048 was published on 2022-04-15 and last updated on 2026-06-17.

References

https://www.moxa.com/en/support/product-support/security-advisory/mgate-mb3170-mb3270-mb3280-mb3480-protocol-gateways-vulnerability

Affected products (20)

cpe:2.3:o:moxa:mgate_mb3170i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170i-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-m-st_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-m-sc-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-m-sc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170i-s-sc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3270i_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3270i-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170i-m-sc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-s-sc-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170i-m-sc-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3270_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3270-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-s-sc_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170-m-st-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3170i-s-sc-t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3280_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:moxa:mgate_mb3480_firmware:*:*:*:*:*:*:*:*