CVE-2025-65821
HIGH EPSS 22.7%
Published Dec 10, 20256mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
Published Dec 10, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago
Description
As UART download mode is still enabled on the ESP32 chip on which the firmware runs, an adversary can dump the flash from the device and retrieve sensitive information such as details about the current and previous Wi-Fi network from the NVS partition. Additionally, this allows the adversary to reflash the device with their own firmware which may contain malicious modifications.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
22.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-1191
Affected Products 2
References 2
- gist.github.com https://gist.github.com/dead1nfluence/4dffc239b4a460f41a03345fd8e5feb5#file-uart-download-mode-enabled-md
- github.com https://github.com/dead1nfluence/Meatmeet-Pro-Vulnerabilities/blob/main/Device/UART-Download-Mode-Enabled.md
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.