CVE-2021-47726
HIGH EPSS 18.2%
Published Dec 31, 20255mo ago · Modified Jun 17, 20261w ago
8.7 CVSS 4.0
Published Dec 31, 2025 5mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/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 Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
18.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-522
References 4
- exploit-db.com https://www.exploit-db.com/exploits/49634
- nucom.es https://www.nucom.es
- vulncheck.com https://www.vulncheck.com/advisories/nucom-n-wireless-router-privilege-escalation-via-configuration-backup
- zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5629.php
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.