High severity · published Mar 13, 2026
CVE-2026-32708
Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
8.0
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PX
PX4-Autopilot · PX4
< 1.17.0-rc2 · source: vendor
PD
Px4 Drone Autopilot · Dronecode
before 1.17.0; 1.17.0; 1.17.0; 1.17.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32708
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32708
Exploit
https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-69g4-hcqf-j45p
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