CVE-2025-66620

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.2 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H                                    

Vulnerability Description

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.

Vulnerability Details

Published Date

January 07, 2026

Last Modified

January 22, 2026

CWE ID

CWE-553

Source

NVD

Vendor

columbiaweather

Product

weather_microserver_firmware

External References

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-006-01.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-006-01

CVE-2025-66620

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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