CVE-2026-27509Public exploit

Adjacent root code execution via unauthenticated DDS

Published Feb 26, 2026 · Updated Feb 26, 2026

Missing DDS authentication in Unitree Go2 firmware 1.1.7 through 1.1.9 and 1.1.11 EDU allows attackers to execute Python as root. actuator_manager.py accepts api_id 1002 messages from any DDS domain 0 participant, writes their unvalidated Python under /unitree/etc/programming/, and creates a persistent controller binding. Code execution requires a user to press the selected physical controller keybinding; the uploaded file and binding survive reboots.

CVSS severity8.5
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing DDS authentication in Unitree Go2 firmware 1.1.7 through 1.1.9 and 1.1.11 EDU allows attackers to execute Python as root. actuator_manager.py accepts api_id 1002 messages from any DDS domain 0 participant, writes their unvalidated Python under /unitree/etc/programming/, and creates a persistent controller binding. Code execution requires a user to press the selected physical controller keybinding; the uploaded file and binding survive reboots.

The record

CVE
CVE-2026-27509
Published
Feb 26, 2026
Updated
Feb 26, 2026
Vendor
Unitree Robotics
Product
Unitree Go2
Classifications
CWE-306, T1059.006
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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=1.1.11 (EDU only)
  2. Affected versionversion=1.1.7 <=1.1.9

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Unitree Robotics · Unitree Go2version=1.1.11 (EDU only); version=1.1.7 <=1.1.9

Published CVSS scores

8.5VulnCheckCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.0VulnCheckCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-306Missing Authentication for Critical Function
T1059.006Python

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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