CVE-2026-43847
8.2HighPublished 20 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Impact
- High impact on confidentiality
- Weakness
- —
Impact
Remote unauthenticated attackers can brute force the administrator password over the network to compromise the device. SafeEnhancement protections fail to restrict or throttle these attempts.
Root cause
A flaw in the proprietary protocol fails to enforce rate limiting or lockout controls during authentication attempts.
Affected systems
Advantech devices using the affected proprietary protocol; exact versions not listed — check the vendor advisory.
CVSS v4.0 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Fix & remediation
Check Advantech advisory links for specific firmware updates; as an immediate mitigation, isolate affected devices onto restricted management VLANs and block external network access to the proprietary service port.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
A vulnerability in the proprietary protocol could allow an attacker to brute force the administrator password without restrictions, even when the SafeEnhancement feature is enabled.