CVE-2025-66620
8.0 · HIGHOverview
CVE-2025-66620 is a high-severity vulnerability affecting columbiaweather weather_microserver_firmware. It was published on January 7, 2026 and has a CVSS 3.1 base score of 8.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from columbiaweather. Update weather_microserver_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| columbiaweather | weather_microserver_firmware | >= 0, < MS_4.1_14142 | Affected |
Frequently Asked Questions
What is CVE-2025-66620?
CVE-2025-66620 is a high-severity vulnerability affecting columbiaweather weather_microserver_firmware. It was published on January 7, 2026 and has a CVSS 3.1 base score of 8.0 (HIGH).
How severe is CVE-2025-66620?
This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-66620?
Check the references section for vendor advisories and patches from columbiaweather. Update weather_microserver_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-66620?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-66620 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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