---
id: CVE-2026-86097
title: >-
  PX4 Autopilot through 1.17.0 contains a null pointer dereference vulnerability
  in param_set_default_file() and param_set_backup_file() functions that allows
  attackers to crash the autopilot process
summary: >-
  PX4 Autopilot through 1.17.0 contains a null pointer dereference vulnerability
  in param_set_default_file() and param_set_backup_file() functions that allows
  attackers to crash the autopilot process. Attackers can invoke 'param select'
  or…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: PX4
product: PX4-Autopilot
affected:
  - PX4-Autopilot <= 1.17.0
published: '2026-09-04'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T15:43:03.760'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86097'
references:
  - url: 'https://github.com/PX4/PX4-Autopilot'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/lib/parameters/parameters.cpp
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/PX4/PX4-Autopilot/commit/02eabc08c9b8cb1de525070cacb7ea0c495136f6
    label: disclosure@vulncheck.com
  - url: 'https://github.com/PX4/PX4-Autopilot/pull/28475'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-null-pointer-dereference-via-param-select
    label: disclosure@vulncheck.com
  - url: 'https://github.com/PX4/PX4-Autopilot/pull/28475'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00395
epssPercentile: 0.3088
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-08T13:02:06.860029Z'
ingestedAt: '2026-09-08T15:33:26.965Z'
---

## Overview

PX4 Autopilot through 1.17.0 contains a null pointer dereference vulnerability in param_set_default_file() and param_set_backup_file() functions that allows attackers to crash the autopilot process. Attackers can invoke 'param select' or 'param select-backup' commands with no path argument from any PX4 shell to trigger the crash.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.