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CVE

CVE-2026-1579

PX4 Autopilot Missing authentication for critical function
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CVE

CVE-2026-1579

PX4 Autopilot Missing authentication for critical function

The MAVLink communication protocol does not require cryptographic 

authentication by default. When MAVLink 2.0 message signing is not 

enabled, any message -- including SERIAL_CONTROL, which provides 

interactive shell access -- can be sent by an unauthenticated party with

 access to the MAVLink interface. PX4 provides MAVLink 2.0 message 

signing as the cryptographic authentication mechanism for all MAVLink 

communication. When signing is enabled, unsigned messages are rejected 

at the protocol level.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://docs.px4.io/main/en/mavlink/messagesigning, https://docs.px4.io/main/en/mavlink/securityhardening, https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-090-02.json, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1579.json, https://nvd.nist.gov/vuln/detail/CVE-2026-1579, https://www.cisa.gov/news-events/ics-advisories/icsa-26-090-02

Severity

0

CVSS Score
0
10

Basic Information

Base CVSS
0
EPSS Probability
0.00926%
EPSS Percentile
0.58175%
Introduced Version
6ea3539157ca358c70a515878b77077af7d4611d
Fix Available

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