CVE-2026-84698

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/PX4/PX4-Autopilot
https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/systemcmds/sd_bench/sd_bench.cpp
https://github.com/PX4/PX4-Autopilot/issues/28373
https://www.vulncheck.com/advisories/px4-autopilot-sd-bench-heap-buffer-overflow-via-block-size
https://github.com/PX4/PX4-Autopilot/issues/28373

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-02 01:17

Updated : 2026-09-10 15:43

NVD link : CVE-2026-84698

Mitre link : CVE-2026-84698

CVE.ORG link : CVE-2026-84698

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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