CVE-2023-46256: medium-severity vulnerability in PX4-Autopilot
PX4-Autopilot Heap Buffer Overflow Bug
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.4epss 0.7%
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:L
Affected products
PX4 · PX4-AutopilotRelated CVEs — PX4-Autopilot
In the same product, most dangerous first.
CVE-2023-47625LOWGlobal Buffer Overflow leading to denial of service in PX4-AutopilotEPSS 0.5%CVE-2026-102809HIGHPX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 CommandEPSS 0.5%CVE-2026-32709MEDIUMPX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete)EPSS 0.5%CVE-2026-84698HIGHPX4 Autopilot sd_bench Heap Buffer Overflow via Block SizeEPSS 0.4%CVE-2026-86097HIGHPX4 Autopilot through 1.17.0 Null Pointer Dereference via param selectEPSS 0.4%CVE-2026-32713MEDIUMPX4 Autopilot MAVLink FTP Session Validation Logic Error Allows Operations on Invalid File DescriptorsEPSS 0.4%