CVE-2026-32707

PX4 autopilot has a stack buffer overflow in tattu_can due to unbounded memcpy in frame assembly loop

State: Published
Severity: 5.2 Medium
Published: Mar 13, 2026
Updated: Mar 17, 2026
Reserved: Mar 13, 2026

Description

PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, tattu_can contains an unbounded memcpy in its multi-frame assembly loop, allowing stack memory overwrite when crafted CAN frames are processed. In deployments where tattu_can is enabled and running, a CAN-injection-capable attacker can trigger a crash (DoS) and memory corruption. This vulnerability is fixed in 1.17.0-rc2.

Scores

CVSS	Score	Vector	Source
3.1	5.2 Medium	CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H	GitHub_M

Weaknesses

CWE-121 Stack-based Buffer Overflow

Affected Products

Product	Versions
PX4-AutopilotPX4	< 1.17.0-rc2Affected

References

https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-wxwm-xmx9-hr32

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