Buffer overflow in Dronecode Px4 Drone Autopilot
CVE-2026-32708
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the Zenoh uORB subscriber allocates a stack VLA directly from the incoming payload length without bounds. A remote Zenoh publisher can send an oversized fragmented message to force an unbounded stack allocation and copy, causing a stack overflow and crash of the Zenoh bridge task. This vulnerability is fixed in 1.17.0-rc2.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (15.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/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)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-32708?
- CVE-2026-32708 is a high-severity vulnerability in Dronecode Px4 Drone Autopilot, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-03-16.
- How severe is CVE-2026-32708?
- High severity. CVSS v3 base score is 7.8 out of 10.