CVE-2019-9099
9.8
CRITICAL · CVSS 3.1 · EPSS 4% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. A Buffer overflow in the built-in web server allows remote attackers to initiate DoS, and probably to execute arbitrary code (issue 1 of 2).
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.05% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-120 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2020-03-11 |
| Last modified | 2026-06-17 |
Affected (12)
| Vendor | Product |
|---|---|
| moxa | mb3170 |
| moxa | mb3170 firmware |
| moxa | mb3180 |
| moxa | mb3180 firmware |
| moxa | mb3270 |
| moxa | mb3270 firmware |
| moxa | mb3280 |
| moxa | mb3280 firmware |
| moxa | mb3480 |
| moxa | mb3480 firmware |
| moxa | mb3660 |
| moxa | mb3660 firmware |
References
- https://www.moxa.com/en/support/support/security-advisory/mb3710-3180-3270-3280-3480-3660-vulnerabilities
- https://www.us-cert.gov/ics/advisories/icsa-20-056-01
- https://www.moxa.com/en/support/support/security-advisory/mb3710-3180-3270-3280-3480-3660-vulnerabilities
- https://www.us-cert.gov/ics/advisories/icsa-20-056-01
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