CVE-2024-27081

highpriority · track · 36EPSS 0.015 · 75 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.54% (75th) EPSS

CVSS 8.8 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-28

ESPHome is a system to control your ESP8266/ESP32. A security misconfiguration in the edit configuration file API in the dashboard component of ESPHome version 2023.12.9 (command line installation) allows authenticated remote attackers to read and write arbitrary files under the configuration directory rendering remote code execution possible. This vulnerability is patched in 2024.2.1.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · security-advisories@github.comexploitability 1.2 · impact 5.9

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-22US

affected products (4)

Products and version ranges known to be affected.

esphome esphomeall versionsenisa_euvdEU
esphome esphome≤ = 2023.12.9enisa_euvdEU
esphome esphome= 2023.12.9nvdUScpe:2.3:a:esphome:esphome:*:*:*:*:*:*:*:*
PyPI esphome2023.12.9 → 2024.2.1osvUSpkg:pypi/esphome

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-8p25-3q46-8q2pESPHome vulnerable to remote code execution via arbitrary file write2024-03-01ghsa · osvUS
### Summary Security misconfiguration in edit configuration file API in dashboard component of ESPHome version 2023.12.9 (command line installation) allows authenticated remote attackers to read and write arbitrary files under the configuration directory rendering remote code execution possible. ### Details It is possible to abuse this path traversal vulnerability both in command line installation and Home Assistant add-on, but it is possible to read and write files only under the configuration directory. The vulnerability is present and exploitable in the command line installation, but it was not possible to confirm an impact in the home assistant add-on version. ### PoC <img width="482" alt="/edit?configuration=/config/.esphome/esphome.json" src="https://github.com/esphome/esphome/assets/115887876/d2da3180-976e-4bed-b4b9-35ac960a7fb4"> <img width="344" alt="/edit?configuration=/config/.esphome/build/test01/src/main.cpp (firmware for board named test01)" src="https://github.com/esphome/esphome/assets/115887876/707fb6d7-d4a8-461e-bbb7-05382471e925"> <img width="482" alt="RCE payload POST request on /edit?configuration=.esphome/platformio/packages/tool-esptoolpy/esptool.py" src="https://github.com/esphome/esphome/assets/115887876/c6cb28d8-352d-4fea-b77a-705f63be94e3"> <img width="482" alt="Arbitrary code execution during ESP board flashing" src="https://github.com/esphome/esphome/assets/115887876/5eb0f14c-ceb2-4b15-8898-c02c610763d1"> ### Impact The issue gives read and write access to files under the configuration directory and allows malicious users to write arbitrary code in python scripts executed during the compilation and flashing of firmwares for ESP boards. If chained with GHSA-9p43-hj5j-96h5 and GHSA-5925-88xh-6h99, this issue could allow an unauthenticated remote user to gain remote code execution on the machine hosting the dashboard. It also allows accessing sensitive information such as esphome.json and board firmware source code allowing a user to modify the board firmware, and leaking secrets such as: WiFi network credentials, fallback hotspot WiFi credentials, OTA component authentication password and API encryption key. ### Credits Spike Reply Cybersecurity Team
PYSEC-2026-1328ESPHome vulnerable to remote code execution via arbitrary file write2026-07-07vendor · osvUS
### Summary Security misconfiguration in edit configuration file API in dashboard component of ESPHome version 2023.12.9 (command line installation) allows authenticated remote attackers to read and write arbitrary files under the configuration directory rendering remote code execution possible. ### Details It is possible to abuse this path traversal vulnerability both in command line installation and Home Assistant add-on, but it is possible to read and write files only under the configuration directory. The vulnerability is present and exploitable in the command line installation, but it was not possible to confirm an impact in the home assistant add-on version. ### PoC <img width="482" alt="/edit?configuration=/config/.esphome/esphome.json" src="https://github.com/esphome/esphome/assets/115887876/d2da3180-976e-4bed-b4b9-35ac960a7fb4"> <img width="344" alt="/edit?configuration=/config/.esphome/build/test01/src/main.cpp (firmware for board named test01)" src="https://github.com/esphome/esphome/assets/115887876/707fb6d7-d4a8-461e-bbb7-05382471e925"> <img width="482" alt="RCE payload POST request on /edit?configuration=.esphome/platformio/packages/tool-esptoolpy/esptool.py" src="https://github.com/esphome/esphome/assets/115887876/c6cb28d8-352d-4fea-b77a-705f63be94e3"> <img width="482" alt="Arbitrary code execution during ESP board flashing" src="https://github.com/esphome/esphome/assets/115887876/5eb0f14c-ceb2-4b15-8898-c02c610763d1"> ### Impact The issue gives read and write access to files under the configuration directory and allows malicious users to write arbitrary code in python scripts executed during the compilation and flashing of firmwares for ESP boards. If chained with GHSA-9p43-hj5j-96h5 and GHSA-5925-88xh-6h99, this issue could allow an unauthenticated remote user to gain remote code execution on the machine hosting the dashboard. It also allows accessing sensitive information such as esphome.json and board firmware source code allowing a user to modify the board firmware, and leaking secrets such as: WiFi network credentials, fallback hotspot WiFi credentials, OTA component authentication password and API encryption key. ### Credits Spike Reply Cybersecurity Team

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2024-02-26modified 2026-06-17

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references (8)

External citations — patches, advisories, analysis.

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