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Medium · 6.5 CVE-2026-84698 EUVD-2026-69789GHSA-qhw2-8wrm-m9rh

PX4 Autopilot sd_bench Heap Buffer Overflow via Block Size

Published Sep 2, 2026 · Updated Sep 4, 2026 · Assigned by VulnCheck

Description

PX4 Autopilot contains a heap buffer overflow vulnerability in the sd_bench command that writes a four-byte block number into a user-supplied sized allocation. Attackers can invoke sd_bench with a block size below four bytes to overflow the heap buffer and potentially execute code or crash the system.

Affected products

VendorProductAffectedFixed
PX4 PX4-Autopilot ≤ 1.17.0 —

References