Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
Priority HIGH 70CWE-121Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, the Zenoh uORB subscriber allocates a stack VLA directly from the incoming payload length without bounds. A remote Zenoh publisher can send an oversized fragmented message to force an unbounded stack allocation and copy, causing a stack overflow and crash of the Zenoh bridge task. This vulnerability is fixed in 1.17.0-rc2.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00239 15th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed PX4-Autopilot (PX4): 1.17.0-rc2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| PX4 | PX4-Autopilot | before 1.17.0-rc2 | 1.17.0-rc2 | Patch available | CNA |
- PX4-Autopilot VendorPX4 Affected before 1.17.0-rc2 Fixed in 1.17.0-rc2 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:dronecode:px4_drone_autopilot:*:*:*:*:*:*:*:* | before 1.17.0 | Vulnerable | Dronecode |
| cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:alpha1:*:*:*:*:*:* | 1.17.0 alpha1 | Vulnerable | Dronecode |
| cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:beta1:*:*:*:*:*:* | 1.17.0 beta1 | Vulnerable | Dronecode |
| cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:rc1:*:*:*:*:*:* | 1.17.0 rc1 | Vulnerable | Dronecode |
- cpe:2.3:a:dronecode:px4_drone_autopilot:*:*:*:*:*:*:*:* Versions before 1.17.0 Vulnerable ·Dronecode
- cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:alpha1:*:*:*:*:*:* Versions 1.17.0 alpha1 Vulnerable ·Dronecode
- cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:beta1:*:*:*:*:*:* Versions 1.17.0 beta1 Vulnerable ·Dronecode
- cpe:2.3:a:dronecode:px4_drone_autopilot:1.17.0:rc1:*:*:*:*:*:* Versions 1.17.0 rc1 Vulnerable ·Dronecode
Remediation
- Fix · CNA PX4-Autopilot (PX4) Fixed in 1.17.0-rc2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-32708
References
More PX4 vulnerabilities
- TI-2023-24883 PX4-Autopilot Heap Buffer Overflow Bug CVSS 3.1CRITICAL 9.8
- TI-2026-25198 PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet CVSS 3.1HIGH 8.1
- TI-2026-25197 PX4 autopilot BST Device Name Length Can Overflow Driver Buffer CVSS 3.1MEDIUM 6.8
- TI-2026-65506 PX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 Command CVSS 4.0HIGH 7.1
- TI-2026-59272 PX4 Autopilot through 1.17.0 Use-After-Free in load_mon CVSS 4.0HIGH 7.1
- TI-2026-58898 PX4 Autopilot through 1.17.0 Null Pointer Dereference via param select CVSS 4.0HIGH 7.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences