CVE-2026-86097: px4 px4-autopilot NULL Pointer Dereference
Vulnerability summary
CVE-2026-86097 is a high (CVSS 7.1) NULL Pointer Dereference vulnerability in px4 px4-autopilot. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.2% of scored vulnerabilities.
Timeline
- 04-09-2026PublishedVulnerability first disclosed.
- 08-09-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 2 sources · 2 versions- NVDNIST7.1HighCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVDNIST6.5MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
+0.15 pp
From 0.24% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Px41 product
- px4-autopilot≤ 1.17.0
1 vendor · 1 product
References
5 links- github.com/PX4/PX4-AutopilotProduct
- github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/lib/parameters/parameters.cppTechnical Description