CVE-2026-43839
8.7HighPublished 20 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Impact
- High impact on availability
- Weakness
- —
Impact
Unauthenticated remote attackers can crash the affected service, causing a denial of service. They only need network access to reach the logs management interface.
Root cause
A NULL pointer dereference bug in the logs management component leads to a crash when handling unexpected input.
Affected systems
Advantech products (specific product models and versions not listed — check the vendor advisory).
CVSS v4.0 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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 the Advantech security advisory for updated firmware or software patches; restrict network access to the logs management interface via firewall rules if patching must wait.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD description
A NULL pointer dereference vulnerability in the logs management functionality could allow an unauthenticated attacker to crash the service.