VulnerabilityModified
CVE-2020-6989
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.
CRITICAL 9.8EPSS 3.50%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.50% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-121, CWE-787
- Affected
- moxa/pt-7528-24tx-hv firmware · moxa/pt-7528-24tx-hv-hv firmware · moxa/pt-7528-24tx-wv firmware · moxa/pt-7528-24tx-wv-hv firmware · moxa/pt-7528-24tx-wv-wv firmware · moxa/pt-7528-12msc-12tx-4gsfp-hv firmware · moxa/pt-7528-12msc-12tx-4gsfp-hv-hv firmware · moxa/pt-7528-12msc-12tx-4gsfp-wv firmware · moxa/pt-7528-12msc-12tx-4gsfp-wv-wv firmware · moxa/pt-7528-12mst-12tx-4gsfp-hv firmware · moxa/pt-7528-12mst-12tx-4gsfp-hv-hv firmware · moxa/pt-7528-12mst-12tx-4gsfp-wv firmware · moxa/pt-7528-12mst-12tx-4gsfp-wv-wv firmware · moxa/pt-7528-16msc-8tx-4gsfp-hv firmware · moxa/pt-7528-16msc-8tx-4gsfp-hv-hv firmware · moxa/pt-7528-16msc-8tx-4gsfp-wv firmware · moxa/pt-7528-16msc-8tx-4gsfp-wv-wv firmware · moxa/pt-7528-16mst-8tx-4gsfp-hv firmware · moxa/pt-7528-16mst-8tx-4gsfp-hv-hv firmware · moxa/pt-7528-16mst-8tx-4gsfp-wv firmware · +35 more
- Source
- ics-cert@hq.dhs.gov
References
- https://www.us-cert.gov/ics/advisories/icsa-20-056-03Third Party Advisory, US Government Resource
- https://www.us-cert.gov/ics/advisories/icsa-20-056-03Third Party Advisory, US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.