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CPDLC security advisories

1 CISA ICS advisory for CPDLC in the last tracking window, 0 flagged as relevant to oil & gas. Newest first.

High 7.1 ICSA-26-219-01 · Aug 7, 2026 · CPDLC

CPDLC over ATN-B1 Vulnerabilities

CISA reports 5 vulnerabilities in CPDLC ATN-B1 CPDLC. Weakness types: Missing Authentication for Critical Function, Allocation of Resources Without Limits or Throttling, Improper Check for Unusual or Exceptional Conditions. ATN-B1 CPDLC relies on legacy clear text unauthenticated radio frequency links. Research demonst…

What to do: Prioritize: These vulnerabilities in the CPDLC protocol stack are exploitable in a lab environment. However, they require very specific conditions to be met and are unlikely to be exploited outside of a lab setting. The vendor lists no fix for some issues, so lean on mitigations.