CVE-2025-61939
8.8 · HIGHOverview
CVE-2025-61939 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 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
An unused function in MicroServer can start a reverse SSH connection to a vendor registered domain, without mutual authentication. An attacker on the local network with admin access to the web server, and the ability to manipulate DNS responses, can redirect the SSH connection to an attacker controlled device.
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-2025-61939?
CVE-2025-61939 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 8.8 (HIGH).
How severe is CVE-2025-61939?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2025-61939?
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-2025-61939?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-61939 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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