CyberSecBulletin
CVE-2025-65821NVD status: Analyzed

Meatmeet Pro WiFi & Bluetooth Meat Thermometer…: On-Chip Debug and Test Interface With Improper Access Control

Published Updated By the CyberSecBulletin desk

CVE-2025-65821 is a high-severity on-chip debug and test interface with improper access control vulnerability in Meatmeet Pro WiFi & Bluetooth Meat Thermometer Firmware from Meatmeet, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Meatmeet Pro WiFi & Bluetooth Meat Thermometer Firmware versions: 1.0.34.4. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.4% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Meatmeet Pro WiFi & Bluetooth Meat Thermometer Firmware you run against the affected versions below, and install the vendor's latest release.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
MeatmeetMeatmeet Pro WiFi & Bluetooth Meat Thermometer Firmware1.0.34.4Not stated

Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by CISA (ADP).

Official 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.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: On-Chip Debug and Test Interface With Improper Access Control

The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface.

How developers prevent this class of flaw

  • If feasible, the manufacturer should disable the JTAG interface or implement authentication and authorization for the JTAG interface. If authentication logic is added, it should be resistant to timing attacks. Security-sensitive data stored in registers, such as keys, etc. should be cleared when entering debug mode.

More On-Chip Debug and Test Interface With Improper Access Control vulnerabilities (CWE-1191)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Meatmeet Pro WiFi & Bluetooth Meat Thermometer Firmware

All Meatmeet Pro WiFi & Bluetooth Meat Thermometer Firmware vulnerabilities

Recent On-Chip Debug and Test Interface With Improper Access Control vulnerabilities

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