What is CVE-2023-46256?

CVE-2023-46256 is a medium-severity vulnerability in Px4 Px4-autopilot, classified under Heap-based Buffer Overflow. CVSS score: 4.4/10. Published 2023-10-31.

How severe is CVE-2023-46256?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Is CVE-2023-46256 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Px4 Px4-autopilot

CVE-2023-46256

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 malfun…

Vulnerability class: Buffer Overflow

EPSS: 0.003 (53.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:N/A:L.

Affected products

Px4 Px4-autopilot — versions <= 1.14.0-rc1

Weakness classification (CWE)

Public proof-of-concept exploits

DiRaltvein/memory-corruption-examples

References

https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-5hvv-q2r5-rppw (x_refsource_CONFIRM)
https://github.com/PX4/PX4-Autopilot/blob/main/src/drivers/distance_sensor/lightware_laser_serial/parser.cpp#L87 (x_refsource_MISC)

Frequently asked questions

What is CVE-2023-46256?: CVE-2023-46256 is a medium-severity vulnerability in Px4 Px4-autopilot, classified under Heap-based Buffer Overflow. CVSS score: 4.4/10. Published 2023-10-31.
How severe is CVE-2023-46256?: Medium severity. CVSS v3 base score is 4.4 out of 10.
Is CVE-2023-46256 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.