NULL pointer dereference in Px4 Px4-Autopilot
CVE-2026-86097
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (32.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/PX4/PX4-Autopilot (product)
- github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/lib/parameters/parameters.cpp (technical-description)
- github.com/PX4/PX4-Autopilot/commit/02eabc08c9b8cb1de525070cacb7ea0c495136f6 (patch)
- github.com/PX4/PX4-Autopilot/pull/28475 (issue-tracking, patch)
- www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-null-pointer-derefere… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-86097?
- CVE-2026-86097 is a medium-severity vulnerability in Px4 Px4-Autopilot, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2026-09-04.
- How severe is CVE-2026-86097?
- Medium severity. CVSS v3 base score is 6.5 out of 10.