Stack-memory disclosure via oversized netman interface name
Published Sep 8, 2026 · Updated Sep 8, 2026
Stack buffer over-read in PX4 Autopilot 1.17.0 and earlier allows attackers to disclose stack memory via crafted netman commands. In save(), snprintf() returns the length that would have been written, and write() uses that oversized value to read beyond the 81-byte line buffer. Exploitation requires the NuttX-only netman command to be enabled and command execution or influence over its arguments; leaked data reaches console output or net.cfg.
Summary
What happened
Stack buffer over-read in PX4 Autopilot 1.17.0 and earlier allows attackers to disclose stack memory via crafted netman commands. In save(), snprintf() returns the length that would have been written, and write() uses that oversized value to read beyond the 81-byte line buffer. Exploitation requires the NuttX-only netman command to be enabled and command execution or influence over its arguments; leaked data reaches console output or net.cfg.
The record
- CVE
- CVE-2026-86714
- Published
- Sep 8, 2026
- Updated
- Sep 8, 2026
- Vendor
- PX4
- Product
- PX4 Autopilot
- Classifications
- CWE-125, CAPEC-540, T1005
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 8, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=1.17.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- netman oversized interface-name proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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