{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-71409", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-08-04T20:31:35.645Z", "datePublished": "2026-08-07T19:02:50.109Z", "dateUpdated": "2026-08-07T19:02:50.109Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-08-07T19:02:50.109Z"}, "title": "No Authentication for Very High Frequency Data Link messages used in CPDLC", "datePublic": "2026-08-07T18:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-306", "description": "CWE-306", "type": "CWE"}]}], "affected": [{"vendor": "ATN-B1", "product": "CPDLC", "versions": [{"status": "affected", "version": "All versions", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Lack of authentication for Very High Frequency Data Link messages allows rogue ground stations to inject CPDLC messages leading to unexpected or misleading clearances and potential pilot confusion. This type of attack can be carried out remotely over radio frequency.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Lack of authentication for Very High Frequency Data Link messages allows rogue ground stations to inject CPDLC messages leading to unexpected or misleading clearances and potential pilot confusion. This type of attack can be carried out remotely over radio frequency."}]}], "references": [{"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-219-01", "tags": ["third-party-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "LOW", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "baseSeverity": "HIGH", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L"}}], "workarounds": [{"lang": "en", "value": "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.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "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.<br>"}]}, {"lang": "en", "value": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.&nbsp;&nbsp;"}]}], "credits": [{"lang": "en", "value": "Martin Strohmeier of Armasuisse reported this vulnerability to CISA.", "type": "finder"}], "source": {"advisory": "ICSA-26-219-01", "discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.4"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "CPDLC", "source": "cna", "vendor": "ATN-B1"}, "product": "cpdlc", "vendor": "atn-b1"}], "created": "2026-08-07T21:15:03.701151+00:00", "updated": "2026-08-08T20:40:36.628380+00:00", "vendors": ["atn-b1", "atn-b1$PRODUCT$cpdlc"]}