What’s Vulnerable › Vulnerabilities
CVE-2020-6983
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-03-24 · updated 2026-06-17
- Weakness: CWE-321
Description
In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, the affected products use a hard-coded cryptographic key, which increases the possibility that confidential data can be recovered.
Affected products
- Moxa Pt-7528-12Msc-12Tx-4Gsfp-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-12Msc-12Tx-4Gsfp-Hv Firmware: through 4.0
- Moxa Pt-7528-12Msc-12Tx-4Gsfp-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-12Msc-12Tx-4Gsfp-Wv Firmware: through 4.0
- Moxa Pt-7528-12Mst-12Tx-4Gsfp-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-12Mst-12Tx-4Gsfp-Hv Firmware: through 4.0
- Moxa Pt-7528-12Mst-12Tx-4Gsfp-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-12Mst-12Tx-4Gsfp-Wv Firmware: through 4.0
- Moxa Pt-7528-16Msc-8Tx-4Gsfp-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-16Msc-8Tx-4Gsfp-Hv Firmware: through 4.0
- Moxa Pt-7528-16Msc-8Tx-4Gsfp-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-16Msc-8Tx-4Gsfp-Wv Firmware: through 4.0
- Moxa Pt-7528-16Mst-8Tx-4Gsfp-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-16Mst-8Tx-4Gsfp-Hv Firmware: through 4.0
- Moxa Pt-7528-16Mst-8Tx-4Gsfp-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-16Mst-8Tx-4Gsfp-Wv Firmware: through 4.0
- Moxa Pt-7528-20Msc-4Tx-4Gsfp-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-20Msc-4Tx-4Gsfp-Hv Firmware: through 4.0
- Moxa Pt-7528-20Msc-4Tx-4Gsfp-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-20Msc-4Tx-4Gsfp-Wv Firmware: through 4.0
- Moxa Pt-7528-20Mst-4Tx-4Gsfp-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-20Mst-4Tx-4Gsfp-Hv Firmware: through 4.0
- Moxa Pt-7528-20Mst-4Tx-4Gsfp-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-20Mst-4Tx-4Gsfp-Wv Firmware: through 4.0
- Moxa Pt-7528-24Tx-Hv-Hv Firmware: through 4.0
- Moxa Pt-7528-24Tx-Hv Firmware: through 4.0
- Moxa Pt-7528-24Tx-Wv-Hv Firmware: through 4.0
- Moxa Pt-7528-24Tx-Wv-Wv Firmware: through 4.0
- Moxa Pt-7528-24Tx-Wv Firmware: through 4.0
- Moxa Pt-7528-8Msc-16Tx-4Gsfp-Hv-Hv Firmware: through 4.0
References
- https://www.us-cert.gov/ics/advisories/icsa-20-056-03
- https://www.us-cert.gov/ics/advisories/icsa-20-056-03
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