CVE-2026-32724Public exploit

Flight-controller crash via MAVLink shell race

Published Mar 13, 2026 · Updated Mar 13, 2026

Heap use-after-free in PX4 Autopilot before 1.17.0-rc1 allows remote attackers on a MAVLink link to crash the flight controller. The receiver thread deletes the shared MavlinkShell after a SERIAL_CONTROL message clears RESPOND while the sender thread dereferences it in available(). Exploitation requires winning that race; observed effects include crashes, memory corruption, and nondeterministic behavior, not demonstrated code execution.

CVSS severity5.3
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap use-after-free in PX4 Autopilot before 1.17.0-rc1 allows remote attackers on a MAVLink link to crash the flight controller. The receiver thread deletes the shared MavlinkShell after a SERIAL_CONTROL message clears RESPOND while the sender thread dereferences it in available(). Exploitation requires winning that race; observed effects include crashes, memory corruption, and nondeterministic behavior, not demonstrated code execution.

The record

CVE
CVE-2026-32724
Published
Mar 13, 2026
Updated
Mar 13, 2026
Vendor
PX4
Product
PX4 Autopilot
Classifications
CWE-416, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.17.0-rc1

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

PX4 · PX4 Autopilotversion=< 1.17.0-rc1

Published CVSS scores

5.3GitHubCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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