CVE-2025-65829

6.8 MEDIUM

📋 TL;DR

This CVE describes a missing Secure Boot implementation on ESP32 SoC devices, specifically affecting Meatmeet basestation devices. Attackers with physical access can flash malicious firmware that executes on startup, bypassing authentication controls. This affects organizations using Meatmeet basestation devices in their environments.

💻 Affected Systems

Products:
  • Meatmeet basestation devices using ESP32 SoC
Versions: All versions with Secure Boot disabled
Operating Systems: ESP32 firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Specifically affects ESP32 SoC implementations where Secure Boot was not enabled during manufacturing.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete device compromise allowing persistent malware installation, data exfiltration, and use as a foothold for lateral movement within the network.

🟠

Likely Case

Physical attackers gaining full control of affected devices to intercept communications, manipulate device functionality, or establish persistence.

🟢

If Mitigated

Limited impact if devices are physically secured and network segmentation prevents lateral movement from compromised devices.

🌐 Internet-Facing: LOW - Exploitation requires physical access to the device, not remote network access.
🏢 Internal Only: MEDIUM - Physical access within facilities could allow exploitation, but requires attacker presence at device location.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires physical access and basic hardware flashing tools. Public documentation exists demonstrating the vulnerability.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: N/A

Vendor Advisory: N/A

Restart Required: No

Instructions:

No official patch available. Requires hardware replacement or firmware re-flashing with Secure Boot enabled by manufacturer.

🔧 Temporary Workarounds

Physical Security Controls

all

Implement strict physical access controls to prevent unauthorized access to devices

Network Segmentation

all

Isolate affected devices on separate network segments to limit potential lateral movement

🧯 If You Can't Patch

  • Deploy devices in physically secure locations with access controls and monitoring
  • Implement network monitoring for anomalous traffic from affected devices

🔍 How to Verify

Check if Vulnerable:

Check device specifications or contact manufacturer to confirm if Secure Boot is enabled on ESP32 SoC

Check Version:

N/A - Hardware-level vulnerability not version dependent

Verify Fix Applied:

Verify with manufacturer that replacement devices have Secure Boot enabled in hardware

📡 Detection & Monitoring

Log Indicators:

  • Unexpected device reboots
  • Firmware version changes
  • Serial console access logs

Network Indicators:

  • Unusual outbound connections from device
  • Anomalous network traffic patterns

SIEM Query:

Device:vendor="Meatmeet" AND Event:type="Firmware Update" OR Event:type="Unauthorized Access"

🔗 References

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