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.
History

Thu, 22 Jan 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Columbiaweather
Columbiaweather weather Microserver
Columbiaweather weather Microserver Firmware
CPEs cpe:2.3:h:columbiaweather:weather_microserver:-:*:*:*:*:*:*:*
cpe:2.3:o:columbiaweather:weather_microserver_firmware:*:*:*:*:*:*:*:*
Vendors & Products Columbiaweather
Columbiaweather weather Microserver
Columbiaweather weather Microserver Firmware

Wed, 07 Jan 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 07 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
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.
Title Columbia Weather Systems MicroServer Command Shell in Externally Accessible Directory
Weaknesses CWE-553
References
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2026-01-07T20:08:33.137Z

Updated: 2026-01-07T20:16:28.659Z

Reserved: 2025-12-08T19:17:55.938Z

Link: CVE-2025-66620

cve-icon Vulnrichment

Updated: 2026-01-07T20:16:09.218Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-07T21:15:59.170

Modified: 2026-01-22T17:33:55.143

Link: CVE-2025-66620

cve-icon Redhat

No data.