CVE-2025-66620 - CVE House
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Status published High CVE-2025-66620

Columbia Weather Systems MicroServer Command Shell in Externally Accessible Directory

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • UsrPacific/Columbia Weather Systems reported these vulnerabilities to CISA.

References

More from Columbia Weather Systems

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CVE-2025-64305
Columbia Weather Systems MicroServer Cleartext Storage in a File or on Disk
High 7.1
CVE-2025-61939
Columbia Weather Systems MicroServer Improper Restriction of Communication Channel to Intended Endpoints
High 8.7

Affected Vendor

Columbia Weather Systems

View all reports →

Affected Software

MicroServer
Vulnerable Versions:
0

Timeline

Official Publish: January 7th, 2026
Last Modified: January 7th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-553

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.