CVE-2026-32743: PX4 is an open-source autopilot stack for drones and unmanned vehicles

Q: How do I fix CVE-2026-32743?

px4 drone autopilot: upgrade to 1.17.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-32743 being exploited?

CVE-2026-32743 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-32743 affect?

CVE-2026-32743 affects px4 drone autopilot. Severity is medium (CVSS 6.5). 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.filep

Q: How urgent is CVE-2026-32743?

Priority 36/100. Public exploit reference

Routine

MEDIUM 6.5UPGRADE

CVE-2026-32743 is a medium-severity flaw (CVSS 6.5) affecting px4 drone autopilot. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.filepath buffer is 60 bytes, but the sscanf function parses paths from the log list file with no width specifier, allowing a path longer than 60 characters to overflow the buffer. An attacker with MAVLink link acces

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-121
Published	2026-03-19
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: dronecode

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-19 00:16 UTCPublished CVE record published
2026-06-17 10:36 UTCUpdated Record last modified

dronecode px4 drone autopilot UPGRADE

Affected: < 1.17.0 · 1.17.0 alpha1 · 1.17.0 beta1 · 1.17.0 rc1 · 1.17.0 rc2

Fixed in: 1.17.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy px4-drone-autopilot || rpm -q px4-drone-autopilot || px4-drone-autopilot --version

2. UPGRADE to 1.17.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade px4-drone-autopilot

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade px4-drone-autopilot

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-32743?

px4 drone autopilot: upgrade to 1.17.0. Exact commands for each OS are on this page.

Is CVE-2026-32743 being exploited?

CVE-2026-32743 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-32743 affect?

CVE-2026-32743 affects px4 drone autopilot. Severity is medium (CVSS 6.5). 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.filep

How urgent is CVE-2026-32743?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2025-15150 MEDIUM 5.3 UPGRADE A vulnerability was found in PX4 PX4-Autopilot up to 1.16.0
CVE-2026-32724 MEDIUM 5.3 UPGRADE PX4 autopilot is a flight control solution for drones
CVE-2026-32713 MEDIUM 4.3 UPGRADE PX4 autopilot is a flight control solution for drones
CVE-2026-32709 MEDIUM 5.4 UPGRADE PX4 autopilot is a flight control solution for drones
CVE-2026-32708 HIGH 7.8 UPGRADE PX4 autopilot is a flight control solution for drones

References

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