PX4 PX4-Autopilot up to 1.15.4 Mavlink Shell Closing mavlink_receiver.cpp handle_message_serial_control _mavlink_shell use after free

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in PX4 PX4-Autopilot up to 1.15.4. This vulnerability affects the function MavlinkReceiver::handle_message_serial_control of the file src/modules/mavlink/mavlink_receiver.cpp of the component Mavlink Shell Closing Handler. The manipulation of the argument _mavlink_shell leads to use after free. This vulnerability is documented as CVE-2025-9020. The attack needs to be performed locally. There is not any exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in PX4 PX4-Autopilot up to 1.15.4 and classified as critical. This issue affects the function MavlinkReceiver::handle_message_serial_control of the file src/modules/mavlink/mavlink_receiver.cpp of the component Mavlink Shell Closing Handler. The manipulation of the argument _mavlink_shell with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2025-9020. The exploitation is known to be difficult. An attack has to be approached locally. Technical details are known, but no exploit is available.

Applying the patch 4395d4f00c49b888f030f5b43e2a779f1fa78708 is able to eliminate this problem. The bugfix is ready for download at github.com.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.5
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 4395d4f00c49b888f030f5b43e2a779f1fa78708

Timelineinfo

08/14/2025 Advisory disclosed
08/14/2025 +0 days VulDB entry created
08/15/2025 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 25046
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2025-9020 (🔒)
GCVE (CVE): GCVE-0-2025-9020
GCVE (VulDB): GCVE-100-320081

Entryinfo

Created: 08/14/2025 08:06
Updated: 08/15/2025 10:41
Changes: 08/14/2025 08:06 (59), 08/15/2025 10:41 (30)
Complete: 🔍
Submitter: 0x20z
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #624722: PX4 PX4-Autopilot main and v1.15.4 Race Condition in File Access (by 0x20z)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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