High 7.5Published Dec 31, 2025

CVE-2021-47726NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup

Updated under an hour ago (Oct 26, 2026, 7:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for NuCom 11N Wireless Router

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-522
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jan 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Nucom NuCom 11N Wireless Router nucom:11n_wireless_router (from the name)	5.07.90	CNA record

References

References

https://www.exploit-db.com/exploits/49634	exploit
https://www.nucom.es	product
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5629.php	third-party-advisory
https://www.vulncheck.com/advisories/nucom-n-wireless-router-privilege-escalation-via-configuration-backup	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.