CVE-2026-32706: high-severity vulnerability in PX4-Autopilot
PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
PX4 autopilot is a flight control solution for drones. Prior to 1.17.0-rc2, The crsf_rc parser accepts an oversized variable-length known packet and copies it into a fixed 64-byte global buffer without a bounds check. In deployments where crsf_rc is enabled on a CRSF serial port, an adjacent/raw-serial attacker can trigger memory corruption and crash PX4. This vulnerability is fixed in 1.17.0-rc2.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Affected products
PX4 · PX4-AutopilotRelated CVEs — PX4-Autopilot
In the same product, most dangerous first.
CVE-2023-46256MEDIUMPX4-Autopilot Heap Buffer Overflow BugEPSS 0.7%CVE-2023-47625LOWGlobal Buffer Overflow leading to denial of service in PX4-AutopilotEPSS 0.5%CVE-2026-102809HIGHPX4 Autopilot through 1.17.0 Stack Exhaustion via tests file2 CommandEPSS 0.5%CVE-2026-32709MEDIUMPX4 Autopilot MAVLink FTP Unauthenticated Path Traversal (Arbitrary File Read/Write/Delete)EPSS 0.5%CVE-2026-84698HIGHPX4 Autopilot sd_bench Heap Buffer Overflow via Block SizeEPSS 0.4%CVE-2026-86097HIGHPX4 Autopilot through 1.17.0 Null Pointer Dereference via param selectEPSS 0.4%