CVE-2026-43851

8.2High

Published 20 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash

8.2High

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Impact: High impact on confidentiality
Weakness: —

Impact

Authenticated attackers with high privileges can read arbitrary files from the underlying system across the network. They require valid high-privilege credentials to exploit it.

Root cause

Improper input validation allows path traversal via user-supplied file paths.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v4.0 · CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:H/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 the Advantech security advisory for specific fixed firmware or software releases, and restrict administrative access to trusted management networks only until patched.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

A path traversal vulnerability could allow an authenticated attacker to read arbitrary files on the system.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-43851