Description
Moxa’s Ethernet switch is vulnerable to an authentication bypass because of flaws in its authorization mechanism. Although both client-side and back-end server verification are involved in the process, attackers can exploit weaknesses in its implementation. These vulnerabilities may enable brute-force attacks to guess valid credentials or MD5 collision attacks to forge authentication hashes, potentially compromising the security of the device.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Moxa | EDS-508A Series | 1.0 – ≤ 3.11 | — |
| Moxa | PT-508 Series | 1.0 – ≤ 3.8 | — |
| Moxa | PT-510 Series | 1.0 – ≤ 3.8 | — |
| Moxa | PT-7528 Series | 1.0 – ≤ 5.0 | — |
| Moxa | PT-7728 Series | 1.0 – ≤ 3.9 | — |
| Moxa | PT-7828 Series | 1.0 – ≤ 4.0 | — |
| Moxa | PT-G503 Series | 1.0 – ≤ 5.3 | — |
| Moxa | PT-G510 Series | 1.0 – ≤ 6.5 | — |
| Moxa | PT-G7728 Series | 1.0 – ≤ 6.5 | — |
| Moxa | PT-G7828 Series | 1.0 – ≤ 6.5 | — |
Advisories 1
- WID-SEC-2025-0127 Moxa Switch: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen BSI CERT-Bund (WID) · Feb 3, 2026
References
- https://www.moxa.com/en/support/product-support/security-advisory/mpsa-241407-cve-2024-12297-frontend-authorization-logic-disclosure-vulnerability-in-eds-508a-series vendor-advisory
- https://www.moxa.com/en/support/product-support/security-advisory/mpsa-241408-cve-2024-12297-frontend-authorization-logic-disclosure-vulnerability-identified-in-pt-switches vendor-advisory