CVE-2026-32713Public exploit

FTP service interruption via faulty session validation

Published Mar 13, 2026 · Updated Mar 13, 2026

Session-validation logic errors in PX4 Autopilot before 1.17.0-rc2 allow remote attackers to interrupt MAVLink FTP operations. The _workBurst and _workWrite paths combine an invalid session ID and closed descriptor test with AND instead of OR, allowing either invalid state to pass. Exploitation requires access to an adjacent MAVLink channel, and the demonstrated consequence is limited to FTP isolation bypass, error paths, and service interruption.

CVSS severity4.3
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session-validation logic errors in PX4 Autopilot before 1.17.0-rc2 allow remote attackers to interrupt MAVLink FTP operations. The _workBurst and _workWrite paths combine an invalid session ID and closed descriptor test with AND instead of OR, allowing either invalid state to pass. Exploitation requires access to an adjacent MAVLink channel, and the demonstrated consequence is limited to FTP isolation bypass, error paths, and service interruption.

The record

CVE
CVE-2026-32713
Published
Mar 13, 2026
Updated
Mar 13, 2026
Vendor
PX4
Product
PX4 Autopilot
Classifications
CWE-670, T0814
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.17.0-rc2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

PX4 · PX4 Autopilotversion=< 1.17.0-rc2

Published CVSS scores

4.3GitHub CNACVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.5NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-670Always-Incorrect Control Flow Implementation
T0814Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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