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CVE-2026-32709— PX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete)

Quick assessment

Affected
PX4 PX4-Autopilot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PX4-Autopilot是PX4 Autopilot开源的一个无人机自动驾驶系统。 PX4-Autopilot 1.17.0-rc2之前版本存在路径遍历漏洞，该漏洞源于PX4 Autopilot MAVLink FTP实现中存在未经验证的路径遍历，可能导致任何MAVLink对等方无需身份验证即可对飞行控制器文件系统上的任意文件进行读写操作。

CVSS 5.4 · Medium EPSS 0.34% · P25
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I. Basic Information for CVE-2026-32709

Vulnerability Information
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Vulnerability Title
PX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete)
Source: CVE Program / CVE List V5
Vulnerability Description
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, An unauthenticated path traversal vulnerability in the PX4 Autopilot MAVLink FTP implementation allows any MAVLink peer to read, write, create, delete, and rename arbitrary files on the flight controller filesystem without authentication. On NuttX targets, the FTP root directory is an empty string, meaning attacker-supplied paths are passed directly to filesystem syscalls with no prefix or sanitization for read operations. On POSIX targets (Linux companion computers, SITL), the write-path validation function unconditionally returns true, providing no protection. A TOCTOU race condition in the write validation on NuttX further allows bypassing the only existing guard. This vulnerability is fixed in 1.17.0-rc2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
PX4-Autopilot 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PX4-Autopilot是PX4 Autopilot开源的一个无人机自动驾驶系统。 PX4-Autopilot 1.17.0-rc2之前版本存在路径遍历漏洞，该漏洞源于PX4 Autopilot MAVLink FTP实现中存在未经验证的路径遍历，可能导致任何MAVLink对等方无需身份验证即可对飞行控制器文件系统上的任意文件进行读写操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PX4 PX4-Autopilot < 1.17.0-rc2 -

II. Public POCs for CVE-2026-32709

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III. Intelligence Information for CVE-2026-32709

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Vendor Advisories for CVE-2026-32709 (1)

Same Patch Batch · PX4 · 2026-03-13 · 7 CVEs total

CVE-2026-32708 7.8 HIGH Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
CVE-2026-32706 7.1 HIGH PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known
CVE-2026-32705 6.8 MEDIUM PX4 autopilot BST Device Name Length Can Overflow Driver Buffer
CVE-2026-32724 5.3 MEDIUM PX4 autopilot has a heap Use-After-Free in MavlinkShell::available() via SERIAL_CONTROL Ra
CVE-2026-32707 5.2 MEDIUM PX4 autopilot has a stack buffer overflow in tattu_can due to unbounded memcpy in frame as
CVE-2026-32713 4.3 MEDIUM PX4 Autopilot MAVLink FTP Session Validation Logic Error Allows Operations on Invalid File

IV. Related Vulnerabilities

Same product: PX4-Autopilot
Same vendor: PX4
Same weakness: CWE-22

V. Comments for CVE-2026-32709

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