What is the CVSS score of CVE-2024-40427?

CVE-2024-40427 has a CVSS 3.1 base score of 7.9 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Px4 Drone Autopilot are affected by CVE-2024-40427?

Organizations using PX4-Autopilot face notable risk from CVE-2024-40427, a buffer overflow vulnerability rated CVSS 7.9.. A patch is available.

Is there a public PoC exploit available for CVE-2024-40427?

Yes, a public proof-of-concept exploit is available for CVE-2024-40427. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2024-40427?

Within 30 days: Identify all affected systems running PX4-Autopilot and apply vendor patches as part of regular patch cycle. If patching is delayed, consider network segmentation to limit exposure.

Px4 Drone Autopilot CVE-2024-40427

HIGH

Classic Buffer Overflow (CWE-120)

2025-01-07 cve@mitre.org

Buffer Overflow Px4 Drone Autopilot

7.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.9 HIGH

AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:02 vuln.today

Patch released

Mar 28, 2026 - 18:02 nvd

Patch available

PoC Detected

Jun 20, 2025 - 18:04 vuln.today

Public exploit code

CVE Published

Jan 07, 2025 - 19:15 nvd

HIGH 7.9

DescriptionCVE.org

Stack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the program to refuse to execute

AnalysisAI

Stack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the program to refuse to execute. Rated high severity (CVSS 7.9), this vulnerability is low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Stack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the program to refuse to execute Affected products include: Dronecode Px4 Drone Autopilot.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

CVE-2024-40427 vulnerability details – vuln.today

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