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Vulnerability record · CVE-2023-47625 · published 13 November 2023

CVE-2023-47625: Dronecode px4 drone autopilot classic buffer overflow vulnerability

Dronecode · Px4 Drone Autopilot

PX4 autopilot is a flight control solution for drones. In affected versions a global buffer overflow vulnerability exists in the CrsfParser_TryParseCrsfPacket function in /src/drivers/rc/crsf_rc/CrsfParser.cpp:298 due to the invalid size check. A malicious user may create an RC packet remotely and that packet goes into the device where the _rcs_buf reads. The global buffer overflow vulnerability will be triggered and the drone can behave unexpectedly. This issue has been addressed in version 1.14.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

4.3 CVSS 3.1 Medium EPSS 0.52% · top 58.5% CWE-120 · Classic buffer overflow
4.3CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

PX4 autopilot is a flight control solution for drones. In affected versions a global buffer overflow vulnerability exists in the CrsfParser_TryParseCrsfPacket function in /src/drivers/rc/crsf_rc/CrsfParser.cpp:298 due to the invalid size check. A malicious user may create an RC packet remotely and that packet goes into the device where the _rcs_buf reads. The global buffer overflow vulnerability will be triggered and the drone can behave unexpectedly. This issue has been addressed in version 1.14.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/PX4/PX4-Autopilot/commit/d1fcd39a44e6312582c6ab02b0d5ee2599fb55aa Patch
https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-qpw7-65ww-wj82 ExploitVendor Advisory
https://github.com/PX4/PX4-Autopilot/commit/d1fcd39a44e6312582c6ab02b0d5ee2599fb55aa Patch
https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-qpw7-65ww-wj82 ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-46256Dronecode px4 drone autopilot classic buffer overflow vulnerabilityPX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerabili…EPSS 0.63%8.1CVE-2026-32706Dronecode px4 drone autopilot classic buffer overflow vulnerabilityPX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, The crsf_rc parser accepts an oversized variable-length known packet and …EPSS 0.31%8.1CVE-2026-26741Dronecode px4 drone autopilot missing authorization vulnerabilityPX4 Autopilot versions 1.12.x through 1.15.x contain a logic flaw in the mode switching mechanism. When switching from Auto mode to Manual mode while…EPSS 0.29%8.1CVE-2026-26742Dronecode px4 drone autopilot missing authorization vulnerabilityPX4 Autopilot versions 1.12.x through 1.15.x contain a protection mechanism failure in the "Re-arm Grace Period" logic. The system incorrectly applie…EPSS 0.30%8.0CVE-2026-32708Dronecode px4 drone autopilot stack-based buffer overflow vulnerabilityPX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the Zenoh uORB subscriber allocates a stack VLA directly from the incomin…EPSS 0.26%7.9CVE-2024-40427Dronecode px4 drone autopilot classic buffer overflow vulnerabilityStack Buffer Overflow in PX4-Autopilot v1.14.3, which allows attackers to execute commands to exploit this vulnerability and cause the program to ref…EPSS 0.35%7.5CVE-2024-38952Dronecode px4 drone autopilot classic buffer overflow vulnerabilityPX4-Autopilot v1.14.3 was discovered to contain a buffer overflow via the topic_name parameter at /logger/logged_topics.cpp.EPSS 0.70%7.5CVE-2021-46896Dronecode px4 drone autopilot classic buffer overflow vulnerabilityBuffer Overflow vulnerability in PX4-Autopilot allows attackers to cause a denial of service via handler function handling msgid 332.EPSS 0.82%

Source: NIST National Vulnerability Database (record CVE-2023-47625), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.