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TI-2023-24883 Aliases CVE-2023-46256

PX4-Autopilot Heap Buffer Overflow Bug

Priority HIGH 75CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

PX4-Autopilot provides PX4 flight control solution for drones. In versions 1.14.0-rc1 and prior, PX4-Autopilot has a heap buffer overflow vulnerability in the parser function due to the absence of `parserbuf_index` value checking. A malfunction of the sensor device can cause a heap buffer overflow with leading unexpected drone behavior. Malicious applications can exploit the vulnerability even if device sensor malfunction does not occur. Up to the maximum value of an `unsigned int`, bytes sized data can be written to the heap memory area. As of time of publication, no fixed version is available.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00742 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PX4PX4-Autopilotup to 1.14.0-rc1—No fix listedCNA
  • PX4-Autopilot VendorPX4 Affected up to 1.14.0-rc1 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:dronecode:px4_drone_autopilot:*:*:*:*:*:*:*:*up to 1.13.3VulnerableDronecode
cpe:2.3:a:dronecode:px4_drone_autopilot:1.14.0:beta1:*:*:*:*:*:*1.14.0 beta1VulnerableDronecode
cpe:2.3:a:dronecode:px4_drone_autopilot:1.14.0:beta2:*:*:*:*:*:*1.14.0 beta2VulnerableDronecode
cpe:2.3:a:dronecode:px4_drone_autopilot:1.14.0:rc1:*:*:*:*:*:*1.14.0 rc1VulnerableDronecode
  • cpe:2.3:a:dronecode:px4_drone_autopilot:*:*:*:*:*:*:*:* Versions up to 1.13.3 Vulnerable ·Dronecode
  • cpe:2.3:a:dronecode:px4_drone_autopilot:1.14.0:beta1:*:*:*:*:*:* Versions 1.14.0 beta1 Vulnerable ·Dronecode
  • cpe:2.3:a:dronecode:px4_drone_autopilot:1.14.0:beta2:*:*:*:*:*:* Versions 1.14.0 beta2 Vulnerable ·Dronecode
  • cpe:2.3:a:dronecode:px4_drone_autopilot:1.14.0:rc1:*:*:*:*:*:* Versions 1.14.0 rc1 Vulnerable ·Dronecode

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-46256
  2. 2026-10-27 EPSS moved to the 50th–90th percentile

References

Exploit 1

Other 1

  • TI-2026-25200 Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot) CVSS 3.1HIGH 8.0
  • TI-2026-25198 PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet CVSS 3.1HIGH 8.1
  • TI-2026-25197 PX4 autopilot BST Device Name Length Can Overflow Driver Buffer CVSS 3.1MEDIUM 6.8
  • TI-2026-65506 PX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 Command CVSS 4.0HIGH 7.1
  • TI-2026-59272 PX4 Autopilot through 1.17.0 Use-After-Free in load_mon CVSS 4.0HIGH 7.1
  • TI-2026-58898 PX4 Autopilot through 1.17.0 Null Pointer Dereference via param select CVSS 4.0HIGH 7.1
See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences