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Description

SDMC NE6037 cable modem routers running firmware 7.1.6.0.25 and 7.1.6.1.9_B9 contain a hardcoded password vulnerability in the web management interface recovery endpoints (mgmt.php, npcmd.php) that allows unauthenticated attackers to gain root access by submitting the hardcoded credential to the recovery endpoint via HTTP. Attackers can leverage this hardcoded password to enable filtered SSH and Telnet services on the device, resulting in unauthenticated root-level remote access to the underlying system.

PUBLISHED Reserved 2026-01-22 | Published 2026-05-28 | Updated 2026-05-28 | Assigner VulnCheck




CRITICAL: 9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Use of Hard-coded Credentials

Product status

Default status
affected

7.1.6.0.25 (custom)
affected

7.1.6.1.9_B9 (custom)
affected

Credits

Ivan Racic finder

VulnCheck coordinator

References

www.kr3bz.wtf/posts/sdmc-ne6037-router-recovery-backdoor/ technical-description exploit

en.sdmctech.com/product/DOCSIS_234.html product

cve.org (CVE-2026-24444)

nvd.nist.gov (CVE-2026-24444)

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