# LrrK Kinematic Software Danger Report

**LRRK Watch / Software Assurance** — Monthly filing.

| Field | Value |
| --- | --- |
| Collection cutoff | 31 August 2025 |
| Platform | Quiet Systems |
| Series | DKSR-M-2025-08 |
| Status | short |
| Data label | Open-source intelligence // LRRK analytic product |
| Handling | Public-source material. Retrospective monthly. Image rights require separate verification before publication. |

## Executive read

### BLUF

PX4 SERIAL_CONTROL grows a use-after-free ID: CVE-2025-9020. Same handler family as the 2024 overflow.

### Key judgments

1. **[Assessment — High confidence]** NVD published 15 August 2025; CNA lists 1.15.0–1.15.4.
2. **[Uncertainty]** Identity with March 2026 GHSA-j5w2 / CVE-2026-32724 is same-function-family, later separate CVE — do not merge.
3. **[Assessment — High confidence]** CNA: local, high complexity, difficult. Not KEV.

### Analytic labels

- **Fact** — verified reporting or primary record
- **Assessment** — analytic judgment
- **Inference** — reasoned but not directly observed
- **Uncertainty** — unresolved information gap

### Source grades

- **A1** — authoritative primary record / directly confirmed
- **B1–B2** — generally reliable and corroborated
- **C3** — useful but requires caution

## 01. CVE-2025-9020: PX4 Mavlink shell use-after-free

*Event / publication dates: NVD 15 August 2025*

| Field | Value |
| --- | --- |
| Component | software |
| Product | PX4-Autopilot up to 1.15.4 (CNA 1.15.0–1.15.4) |
| CVE / advisory | CVE-2025-9020 (VulDB VDB-320081) |
| Patch | commit 4395d4f00c49b888f030f5b43e2a779f1fa78708 |
| Exploit status | catalogued. Not KEV. |
| Taxonomy | ATT&CK ICS T0814 · OWASP IoT I2 |

**Verified record — [Fact — A1] https://nvd.nist.gov/vuln/detail/CVE-2025-9020 · https://github.com/PX4/PX4-Autopilot/issues/25046**

**Exposure.** Race / UAF in the Mavlink shell closing handler. C2 availability.

**Intelligence assessment.** [Assessment — High confidence] Same SERIAL_CONTROL campaign as 2024-07. [Uncertainty] Do not merge with CVE-2026-32724.

**Opportunity.** Passport SERIAL_CONTROL patch level across 40427 / 9020 / 32724.

**LRRK relevance.** Control Fabric. Watch the cluster, not the CVE count.

**Confidence.** High on CVE/date. Moderate on identity with the 2026 GHSA.

## Forward indicators

1. CVE-2026-32724 (March 2026) — same family, separate ID.
2. ArduPilot SERIAL_CONTROL OOB (July 2026).

> **Collection integrity.** One ID. PX4 CI workflow GHSAs from this month were excluded (not vehicle stack). No exploit steps.

*LRRK — security assurance for systems that sense, move, and act.*

<p align="right"><span style="opacity:0.35;letter-spacing:0.18em;font-size:0.8em">L-C2</span></p>