Unrated severityNVD Advisory· Published Mar 13, 2026· Updated Mar 17, 2026
Zenoh uORB Subscriber Allows Arbitrary Stack Allocation (PX4/PX4-Autopilot)
CVE-2026-32708
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.
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Affected products
2<1.17.0-rc2+ 1 more
- (no CPE)range: <1.17.0-rc2
- (no CPE)range: < 1.17.0-rc2
Patches
Vulnerability mechanics
References
1- github.com/PX4/PX4-Autopilot/security/advisories/GHSA-69g4-hcqf-j45pmitrex_refsource_CONFIRM
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