CVE-2026-32709Public exploit

Arbitrary file access via unsanitized FTP paths

Published Mar 13, 2026 · Updated Mar 13, 2026

Path traversal in PX4 Autopilot before 1.17.0-rc2 allows attackers to read, write, create, delete, and rename arbitrary files. MAVLink FTP constructs NuttX paths beneath an empty root without canonicalizing read requests, while POSIX write validation always returns true. Any peer with serial, USB, UDP, or TCP MAVLink access needs no authentication; access remains bounded by the flight-controller process's filesystem permissions.

CVSS severity5.4
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in PX4 Autopilot before 1.17.0-rc2 allows attackers to read, write, create, delete, and rename arbitrary files. MAVLink FTP constructs NuttX paths beneath an empty root without canonicalizing read requests, while POSIX write validation always returns true. Any peer with serial, USB, UDP, or TCP MAVLink access needs no authentication; access remains bounded by the flight-controller process's filesystem permissions.

The record

CVE
CVE-2026-32709
Published
Mar 13, 2026
Updated
Mar 13, 2026
Vendor
PX4
Product
PX4 Autopilot
Classifications
CWE-22, T1005, T1565.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 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.

  1. Affected versionversion=< 1.17.0-rc2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

PX4 · PX4 Autopilotversion=< 1.17.0-rc2

Published CVSS scores

6.8NIST NVDCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
5.4GitHub, Inc.CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System
T1565.001Stored Data Manipulation

Public exploit references

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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