CVE-2025-64305 HIGH

CVE-2025-64305: Columbia Weather Systems MicroServer Cleartext Storage in a File or on Disk

Vendor Columbia Weather Systems
Product MicroServer
Weakness CWE-313
Published January 7, 2026
Last update January 7, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 7, 2026 CVE published
January 7, 2026 Record updated