High severity · published Mar 13, 2026
CVE-2026-32706
PX4 autopilot has a global buffer overflow in crsf_rc via oversized variable-length known packet
8.1
CVSS
0.3%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% 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-2026-32706
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32706
Exploit
https://github.com/PX4/PX4-Autopilot/security/advisories/GHSA-mqgj-hh4g-fg5p
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