Unspecified local impact via MAVLink shell race
Published Aug 15, 2025 · Updated Aug 15, 2025
Use-after-free in PX4 Autopilot 1.15.0 through 1.15.4 allows local users to cause unspecified impact during MAVLink handling. A receiver thread can close and clear _mavlink_shell after the main thread checks it for null but before the main thread calls available() through the stale pointer. Exploitation requires low-privileged local access and precise thread timing; the published record establishes no more specific consequence.
Summary
What happened
Use-after-free in PX4 Autopilot 1.15.0 through 1.15.4 allows local users to cause unspecified impact during MAVLink handling. A receiver thread can close and clear _mavlink_shell after the main thread checks it for null but before the main thread calls available() through the stale pointer. Exploitation requires low-privileged local access and precise thread timing; the published record establishes no more specific consequence.
The record
- CVE
- CVE-2025-9020
- Published
- Aug 15, 2025
- Updated
- Aug 15, 2025
- Vendor
- PX4
- Product
- PX4 Autopilot
- Classifications
- CWE-119, CWE-416
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 15, 2025CVE publishedPublication date reported by the CVE source.
- Aug 15, 2025Record 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.
- Affected versionversion=1.15.0
- Affected versionversion=1.15.1
- Affected versionversion=1.15.2
- Affected versionversion=1.15.3
- Affected versionversion=1.15.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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