What’s Vulnerable › Vulnerabilities

CVE-2026-102809: PX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 Command

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-29 · updated 2026-09-30
• Weakness: CWE-789

Description

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 products

• PX4-Autopilot: through 1.17.0

References

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

Get alerted when CVE-2026-102809 or the next vulnerability affects your stack