What is CVE-2026-32706?

CVE-2026-32706 is a high-severity vulnerability in Dronecode Px4 Drone Autopilot, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.1/10. Published 2026-03-16.

How severe is CVE-2026-32706?

High severity. CVSS v3 base score is 7.1 out of 10.

Buffer overflow in Dronecode Px4 Drone Autopilot

CVE-2026-32706

PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, The crsf_rc parser accepts an oversized variable-length known packet and copies it into a fixed 64-byte global buffer without a bounds check. In deployments where crsf_rc is enabled on a CRSF serial port, an adjacent/raw-serial attacker can trigger memory corruption and crash PX4. This vulnerability is fixed in 1.17.0-rc2.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (23.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

Affected products

Dronecode Px4_drone_autopilot — versions 1.17.0
Px4 Px4-autopilot — versions < 1.17.0-rc2

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-32706?: CVE-2026-32706 is a high-severity vulnerability in Dronecode Px4 Drone Autopilot, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.1/10. Published 2026-03-16.
How severe is CVE-2026-32706?: High severity. CVSS v3 base score is 7.1 out of 10.