CVE-2024-27081Network attack vector

Authenticated code execution via configuration path traversal

Published Feb 26, 2024 · Updated Aug 27, 2024

Path traversal in the ESPHome 2023.12.9 dashboard allows remote authenticated users to read and write files in its configuration directory. EditRequestHandler passes the configuration parameter through settings.rel_path() to file operations without restricting its resolved parent or extension. Dashboard credentials are required; a written Python script executes during firmware compilation or flashing, exposing device secrets and granting code execution on the dashboard host.

CVSS severity7.2
High
EPSS probability1.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the ESPHome 2023.12.9 dashboard allows remote authenticated users to read and write files in its configuration directory. EditRequestHandler passes the configuration parameter through settings.rel_path() to file operations without restricting its resolved parent or extension. Dashboard credentials are required; a written Python script executes during firmware compilation or flashing, exposing device secrets and granting code execution on the dashboard host.

The record

CVE
CVE-2024-27081
Published
Feb 26, 2024
Updated
Aug 27, 2024
Vendor
ESPHome
Product
ESPHome
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2024Record 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== 2023.12.9
  2. Affected versionversion=2023.12.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ESPHome · ESPHomeversion== 2023.12.9; version=2023.12.9

Published CVSS scores

7.2GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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