CVE-2021-47726

NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup

Published Dec 31, 2025 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Nucom
Nucom 11n Wireless Router
Vendors & Products Nucom
Nucom 11n Wireless Router
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.
Title NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup
Weaknesses CWE-522
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Jan 2, 2026, 8:08 PM
Reserved
Dec 7, 2025, 8:10 PM
Status
Deferred
Published
Dec 31, 2025, 7:15 PM
Modified
Jun 17, 2026, 4:18 AM