threat-intel CPDLC over ATN-B1 Vulnerabilities A CISA advisory highlights vulnerabilities in the CPDLC over ATN-B1 protocol, which relies on legacy, unauthenticated radio frequency links. These vulnerabilities allow for message injection, denial-of-service conditions, and forced session resets, potentially leading to operational safety degradation and increased wor… CISA Advisories · Aug 7, 2026 High CVE-2025-71409CVE-2025-71410CVE-2025-71411vulnerabilitythreat-intelsupply-chain