What is CVE-2026-32743?

CVE-2026-32743 is a medium-severity vulnerability in Px4 Px4-autopilot, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2026-03-18.

How severe is CVE-2026-32743?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2026-32743 known to be exploited?

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

Buffer overflow in Px4 Px4-autopilot

CVE-2026-32743

PX4 is an open-source autopilot stack for drones and unmanned vehicles. Versions 1.17.0-rc2 and below are vulnerable to Stack-based Buffer Overflow through the MavlinkLogHandler, and are triggered via MAVLink log request. The LogEntry.file…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (1.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Px4 Px4-autopilot — versions <= 1.17.0-rc2

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

Public proof-of-concept exploits

References

https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-97c4-68r9-96p5 (x_refsource_CONFIRM)
https://github.com/PX4/PX4-Autopilot/commit/616b25a280e229c24d5cf12a03dbf248df89c474 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-32743?: CVE-2026-32743 is a medium-severity vulnerability in Px4 Px4-autopilot, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2026-03-18.
How severe is CVE-2026-32743?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2026-32743 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.