Vulnerability · Published Dec 31, 2025 · Assigned by VulnCheck
CVE-2021-47726NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup
High 7.5
In plain English
A high-severity security flaw in NuCom 11N Wireless Router from Nucom. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 76.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Nucom | NuCom 11N Wireless Router | 5.07.90 |
Weakness: CWE-522 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
- ExploitDB-49634 exploit
- NuCom Vendor Homepage product
- Zero Science Lab Disclosure (ZSL-2021-5629) third-party-advisory
- VulnCheck Advisory: NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup third-party-advisory