CVE-2026-32743

MEDIUM EPSS 28.4%
Published Mar 19, 20263mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Mar 19, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

PX4 is an open-source autopilot stack for drones and unmanned vehicles. Versions 1.17.0-rc2 and below are vulnerable to Stack-based Buffer Overflow through the MavlinkLogHandler, and are triggered via MAVLink log request. The LogEntry.filepath buffer is 60 bytes, but the sscanf function parses paths from the log list file with no width specifier, allowing a path longer than 60 characters to overflow the buffer. An attacker with MAVLink link access can trigger this by first creating deeply nested directories via MAVLink FTP, then requesting the log list. The flight controller MAVLink task crashes, losing telemetry and command capability and causing DoS. This issue has been fixed in this commit: https://github.com/PX4/PX4-Autopilot/commit/616b25a280e229c24d5cf12a03dbf248df89c474.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
28.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-121

Affected Products 5

VendorProductVersionRange
dronecodepx4_drone_autopilot* <1.17.0
dronecodepx4_drone_autopilot1.17.0any
dronecodepx4_drone_autopilot1.17.0any
dronecodepx4_drone_autopilot1.17.0any
dronecodepx4_drone_autopilot1.17.0any

References 2

  • github.com https://github.com/PX4/PX4-Autopilot/commit/616b25a280e229c24d5cf12a03dbf248df89c474
    Patch
  • github.com https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-97c4-68r9-96p5
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/PX4/PX4-Autopilot/commit/616b25a280e229c24d5cf12a03dbf248df89c474
    Patch