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CVE-2020-6985

CRITICALCVSS 9.8/10EPSS 1.65%

Last modified

CVE-2020-6985 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, these devices use a hard-coded service code for access to the console.. EPSS estimates a 1.65% chance of exploitation in the next 30 days.

Description

In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, these devices use a hard-coded service code for access to the console.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.65%

73.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
MoxaPt-7528-24tx-Hv Firmware<= 4.0
MoxaPt-7528-24tx-Hv-Hv Firmware<= 4.0
MoxaPt-7528-24tx-Wv Firmware<= 4.0
MoxaPt-7528-24tx-Wv-Hv Firmware<= 4.0
MoxaPt-7528-24tx-Wv-Wv Firmware<= 4.0
MoxaPt-7528-12msc-12tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-12msc-12tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-12msc-12tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-12msc-12tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-12mst-12tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-12mst-12tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-12mst-12tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-12mst-12tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-16msc-8tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-16msc-8tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-16msc-8tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-16msc-8tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-16mst-8tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-16mst-8tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-16mst-8tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-16mst-8tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-20msc-4tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-20msc-4tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-20msc-4tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-20msc-4tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-20mst-4tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-20mst-4tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-20mst-4tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-20mst-4tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-8msc-16tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-8msc-16tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-8msc-16tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-8msc-16tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-8mst-16tx-4gsfp-Hv Firmware<= 4.0
MoxaPt-7528-8mst-16tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-8mst-16tx-4gsfp-Wv Firmware<= 4.0
MoxaPt-7528-8mst-16tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7528-8ssc-16tx-4gsfp-Hv-Hv Firmware<= 4.0
MoxaPt-7528-8ssc-16tx-4gsfp-Wv-Wv Firmware<= 4.0
MoxaPt-7828-F-24 Firmware<= 3.9
MoxaPt-7828-F-24-24 Firmware<= 3.9
MoxaPt-7828-F-24-Hv Firmware<= 3.9
MoxaPt-7828-F-48 Firmware<= 3.9
MoxaPt-7828-F-48-48 Firmware<= 3.9
MoxaPt-7828-F-48-Hv Firmware<= 3.9
MoxaPt-7828-F-Hv Firmware<= 3.9
MoxaPt-7828-F-Hv-Hv Firmware<= 3.9
MoxaPt-7828-R-24 Firmware<= 3.9
MoxaPt-7828-R-24-24 Firmware<= 3.9
MoxaPt-7828-R-24-Hv Firmware<= 3.9

Showing 50 of 55 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-6985?
In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, these devices use a hard-coded service code for access to the console.
How severe is CVE-2020-6985?
CVE-2020-6985 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.65% probability of exploitation in the next 30 days.
How do I fix CVE-2020-6985?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-6985?

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Source: NVD / NIST