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CVE-2025-66620

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CVE-2025-66620

Published: Jan 7, 2026

Modified: Jan 7, 2026

PUBLISHED

CVSS v3.1

8.0

HIGH

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.

VendorProductVersions

Columbia Weather Systems

MicroServer

affected
0 - < MS_4.1_14142

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

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