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CVE-2023-27482

homeassistant is an open source home automation tool. A remotely exploitable vulnerability bypassing authentication for accessing the Supervisor...

Basic Information

CVE State
PUBLISHED
Reserved Date
March 01, 2023
Published Date
March 08, 2023
Last Updated
February 25, 2025
Vendor
home-assistant
Product
core, supervisor
Description
homeassistant is an open source home automation tool. A remotely exploitable vulnerability bypassing authentication for accessing the Supervisor API through Home Assistant has been discovered. This impacts all Home Assistant installation types that use the Supervisor 2023.01.1 or older. Installation types, like Home Assistant Container (for example Docker), or Home Assistant Core manually in a Python environment, are not affected. The issue has been mitigated and closed in Supervisor version 2023.03.1, which has been rolled out to all affected installations via the auto-update feature of the Supervisor. This rollout has been completed at the time of publication of this advisory. Home Assistant Core 2023.3.0 included mitigation for this vulnerability. Upgrading to at least that version is thus advised. In case one is not able to upgrade the Home Assistant Supervisor or the Home Assistant Core application at this time, it is advised to not expose your Home Assistant instance to the internet.
Tags
python nuclei_scanner

CVSS Scores

CVSS v3.1

10.0 - CRITICAL

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Score

Score
89.48% (Percentile: 99.52%) as of 2025-06-09

SSVC Information

Exploitation
none
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2025-05-12 00:00:00 UTC) Source

References

https://github.com/home-assistant/core/security/advisories/GHSA-2j8f-h4mr-qr25 https://www.home-assistant.io/blog/2023/03/08/supervisor-security-disclosure/ https://github.com/elttam/publications/blob/master/writeups/home-assistant/supervisor-authentication-bypass-advisory.md https://www.elttam.com/blog/pwnassistant/

Known Exploited Vulnerability Information

Source Added Date
The Shadowserver (via CIRCL) 2025-05-12 00:00:00 UTC

Scanner Integrations

Scanner URL Date Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-27482.yaml 2025-04-26 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Detected by Nuclei

  • Added to KEVIntel