CVE-2026-32705CWE-121

PX4 autopilot BST Device Name Length Can Overflow Driver Buffer

Medium · published March 13, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
20.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00291 · 20.5th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-03-13T21:15Z
EPSS history
Timeline
  • 13 MAR 21:15Z
    PX4 autopilot BST Device Name Length Can Overflow Driver Buffer
    cvelistv5