What is CVE-2026-32705?

CVE-2026-32705 is a medium-severity vulnerability in Dronecode Px4 Drone Autopilot, classified under Stack-based Buffer Overflow. CVSS score: 6.8/10. Published 2026-03-16.

How severe is CVE-2026-32705?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Buffer overflow in Dronecode Px4 Drone Autopilot

CVE-2026-32705

PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the BST telemetry probe writes a string terminator using a device-provided length without bounds. A malicious BST device can report an oversized dev_name_len, causing a stack overflow in the driver and crashing the task (or enabling code execution). This vulnerability is fixed in 1.17.0-rc2.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (18.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

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

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

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

Frequently asked questions

What is CVE-2026-32705?: CVE-2026-32705 is a medium-severity vulnerability in Dronecode Px4 Drone Autopilot, classified under Stack-based Buffer Overflow. CVSS score: 6.8/10. Published 2026-03-16.
How severe is CVE-2026-32705?: Medium severity. CVSS v3 base score is 6.8 out of 10.