Sources: National Vulnerability Database, CVE.org, CISA KEV, FIRST EPSS
CVE-2026-125086 Overview
A vulnerability has been found in D-Link M60 1.12.B01. Impacted is the function system of the file /etc/emDaemon/mosquitto.conf of the component emDaemon MQTT Broker. Such manipulation leads to hard-coded credentials. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.
Critical Impact
Affected Products
- D-Link M60: see the vendor advisory for the exact affected versions
Discovery Timeline
- 2026-11-10: CVE-2026-125086 published to the National Vulnerability Database by cna@vuldb.com
- 2026-11-10: last updated in the NVD database
Technical Details for CVE-2026-125086
Vulnerability Analysis
CVE-2026-125086 is a Hard Coded Credentials weakness (CWE-259, CWE-798: Hard Coded Credentials) in D-Link M60. Based on its CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. A password or key is built into the software.
With a CVSS base score of 9.3, apply the vendor fix and confirm exposure on internet facing and business critical assets first.
Root Cause
The weakness is classified as CWE-259, CWE-798: Hard Coded Credentials. A password or key is built into the software.
Attack Vector
Based on the CVSS vector, the flaw can be reached over the network, needs no login, and needs no user interaction. Attack complexity is low complexity.
No exploitation in the wild is confirmed by CISA at the time of the last update. Check the references below for any vendor or researcher proof of concept.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Detection Methods for CVE-2026-125086
Detection Strategies
- Inventory every instance of D-Link M60 and compare the running version with the affected range above.
- Check external attack surface scans for internet facing instances of the component.
- Run an authenticated vulnerability scan once your scanner ships a check for this CVE.
Monitoring Recommendations
- Forward D-Link M60 application, access and audit logs to your SIEM for retrospective hunting.
- Alert on new processes, configuration changes or outbound connections from the affected service.
- Track the vendor advisory and the CISA KEV catalog for changes in exploitation status.
How to Mitigate CVE-2026-125086
Immediate Actions Required
- Apply the fixed version of D-Link M60 named in the vendor advisory.
- Prioritize internet facing and business critical instances first.
- Rescan after the change to confirm the exposure is closed.
Patch Information
Use the fixed version listed in the vendor advisory for D-Link M60.
Workarounds
- If patching must wait, restrict network access to the affected service and place it behind authentication or a web application firewall rule.
CWE References
- CWE-259 More CVEs with this weakness
- CWE-798: Hard Coded Credentials More CVEs with this weakness
Technical References
This entry is built directly from NVD, CISA KEV and EPSS data. Verify fixed versions in the vendor advisory before you deploy.
Frequently asked questions
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