CVE-2026-102809

Summary

PX4 Autopilot through 1.17.0 contains an uncontrolled stack allocation vulnerability in the file2 test command that fails to validate the write chunk size parameter. Attackers with shell access can supply an excessively large value to the -c option to trigger stack overflow and crash the flight controller.

Affected Software

Weaknesses

• CWE-789: Memory Allocation with Excessive Size Value

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/PX4/PX4-Autopilot/pull/28586

References

• https://github.com/PX4/PX4-Autopilot/pull/28586
• https://github.com/PX4/PX4-Autopilot/commit/46a77d8ad15e7929ef261c41083dffd1bbfa9f85
• https://github.com/PX4/PX4-Autopilot/blob/d6f12ad1c4f70ad3230afd7d86e971421e02fef4/src/systemcmds/tests/test_file2.c#L86-L130
• https://github.com/PX4/PX4-Autopilot
• https://www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-stack-exhaustion-via-tests-file2-command

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