CVE-2020-6989

CRITICAL

Moxa PT-7528 and PT-7828 Series Firmware < 4.0 - Stack-based Buffer Overflow via Web Server

Title source: llm
STIX 2.1

Description

In Moxa PT-7528 series firmware, Version 4.0 or lower, and PT-7828 series firmware, Version 3.9 or lower, a buffer overflow in the web server allows remote attackers to cause a denial-of-service condition or execute arbitrary code.

References (1)

Core 1
Core References
Third Party Advisory, US Government Resource x_refsource_misc
https://www.us-cert.gov/ics/advisories/icsa-20-056-03

Scores

CVSS v3 9.8
EPSS 0.0188
EPSS Percentile 83.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-121 CWE-787
Status published
Products (50)
moxa/pt-7528-12msc-12tx-4gsfp-hv-hv_firmware < 4.0
moxa/pt-7528-12msc-12tx-4gsfp-hv_firmware < 4.0
moxa/pt-7528-12msc-12tx-4gsfp-wv-wv_firmware < 4.0
moxa/pt-7528-12msc-12tx-4gsfp-wv_firmware < 4.0
moxa/pt-7528-12mst-12tx-4gsfp-hv-hv_firmware < 4.0
moxa/pt-7528-12mst-12tx-4gsfp-hv_firmware < 4.0
moxa/pt-7528-12mst-12tx-4gsfp-wv-wv_firmware < 4.0
moxa/pt-7528-12mst-12tx-4gsfp-wv_firmware < 4.0
moxa/pt-7528-16msc-8tx-4gsfp-hv-hv_firmware < 4.0
moxa/pt-7528-16msc-8tx-4gsfp-hv_firmware < 4.0
... and 40 more
Published Mar 24, 2020
Tracked Since Feb 18, 2026