CVE-2025-66620
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-07

Last updated on: 2026-01-22

Assigner: ICS-CERT

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.
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Meta Information
Published
2026-01-07
Last Modified
2026-01-22
Generated
2026-05-07
AI Q&A
2026-01-07
EPSS Evaluated
2026-05-05
NVD
EUVD
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
columbiaweather weather_microserver_firmware to MS_4.1_14142 (exc)
columbiaweather weather_microserver *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-553 A possible shell file exists in /cgi-bin/ or other accessible directories. This is extremely dangerous and can be used by an attacker to execute commands on the web server.
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability involves an unused webshell in MicroServer that allows unlimited login attempts. An attacker with admin access can gain limited shell access with sudo rights on certain files and directories. This access enables the attacker to maintain persistence through reverse shells and to modify or remove data stored in the file system.


How can this vulnerability impact me? :

The vulnerability can impact you by allowing an attacker with admin access to gain shell access with elevated privileges, potentially leading to unauthorized modification or deletion of data, and persistent access to the system through reverse shells. This can compromise system integrity, availability, and confidentiality.


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