CVE-2026-1579

CRITICAL EPSS 56.0%
Published Mar 31, 20263mo ago · Modified Jun 17, 20262w ago
9.3 CVSS 4.0
Critical
Find Similar
Published Mar 31, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
56.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

Affected Products 1

VendorProductVersionRange
px4autopilot1.16.0any

References 4

  • docs.px4.io https://docs.px4.io/main/en/mavlink/message_signing
    Product
  • docs.px4.io https://docs.px4.io/main/en/mavlink/security_hardening
    Product
  • github.com https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-090-02.json
    Third Party Advisory
  • cisa.gov https://www.cisa.gov/news-events/ics-advisories/icsa-26-090-02
    Third Party AdvisoryUS Government Resource

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.