CVE-2025-61939
Medium · 4.4CVSS
4.4
EPSS
0.3%
Published
Jan 7, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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