CVE-2026-32706: PX4-Autopilot · Classic Buffer Overflow
Affects PX4-AutopilotSource CVE Database V5
Not known to be exploited · CVSS 7.1 High : upgrade to 1.17.0-rc2 soon.
Data as of 30 Oct 2026, 06:59 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.17.0-rc2
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.
What to do
Upgrade PX4-Autopilot to 1.17.0-rc2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| PX4PX4-Autopilot | Affected
| Fixed in
|
GitHubpx4/PX4-Autopilotpkg:github/px4/PX4-AutopilotOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Upgrade PX4-Autopilot to version 1.17.0-rc2 or later, where the vulnerability is patched with proper bounds checking.
- Restrict access to the CRSF serial port by implementing physical security controls to prevent unauthorized proximity or connection.
- If possible, disable the crsf_rc parser or CRSF protocol on serial ports that do not require it to reduce the attack surface.
- Employ network segmentation and access controls to isolate drone control interfaces from untrusted networks or users.
- Monitor drone system logs and behavior for anomalies that could indicate exploitation attempts or crashes.
- Conduct regular security audits of drone firmware versions and configurations to ensure compliance with updated security standards.
- For deployments with remote or wireless CRSF interfaces, consider additional encryption or authentication layers to prevent unauthorized packet injection.
- Train operators and maintenance personnel on the importance of firmware updates and physical security around drone control hardware.
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.