CVE-2025-64305

Columbia Weather Systems MicroServer Cleartext Storage in a File or on Disk

Published Jan 7, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Columbia Weather Systems recommends users update the MicroServer firmware to version MS_4.1_14142 or later. To obtain the update, users should contact Columbia Weather Systems Support directly via email (support@columbiaweather.com) or phone (503-629-0887) for assistance.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title Columbia Weather Systems MicroServer Cleartext Storage in a File or on Disk
Weaknesses CWE-313
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, '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'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Jan 7, 2026, 8:18 PM
Reserved
Dec 8, 2025, 7:17 PM
Status
Deferred
Published
Jan 7, 2026, 9:15 PM
Modified
Oct 7, 2026, 9:10 AM