CVE-2025-64305
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
MicroServer copies parts of the system firmware to an unencrypted external SD card on boot, which contains user and vendor secrets. An attacker can utilize these plaintext secrets to modify the vendor firmware, or gain admin access to the web portal.
Risk Assessment
The risk is that an attacker with physical access to the SD card can take control of the device, modify firmware, and potentially install persistent backdoors or steal data.
Recommendation
Encrypt data on the SD card or avoid storing sensitive data in plaintext. Also restrict physical access to the device and regularly update firmware.
Other vulnerabilities in MicroServer
See all- CVE-2025-66620High
An unused webshell in MicroServer allows unlimited login attempts, with sudo rights on certain files and directories. An attacker with admin access to MicroServer can gain limited shell access, enabling persistence through reverse shells, and the ability to modify or remove data stored in the file system.
- CVE-2025-61939High
An unused function in MicroServer can start a reverse SSH connection to a vendor registered domain, without mutual authentication. An attacker on the local network with admin access to the web server, and the ability to manipulate DNS responses, can redirect the SSH connection to an attacker controlled device.
Original NVD description (English source)
MicroServer copies parts of the system firmware to an unencrypted external SD card on boot, which contains user and vendor secrets. An attacker can utilize these plaintext secrets to modify the vendor firmware, or gain admin access to the web portal.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS