Nucom NuCom 11N Wireless Router 5.07.90 Configuration Backup Endpoint insufficiently protected credentials

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.0$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Nucom NuCom 11N Wireless Router 5.07.90. Impacted is an unknown function of the component Configuration Backup Endpoint. Executing a manipulation can lead to insufficiently protected credentials. This vulnerability is handled as CVE-2021-47726. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical was found in Nucom NuCom 11N Wireless Router 5.07.90. This vulnerability affects an unknown functionality of the component Configuration Backup Endpoint. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. The CWE definition for the vulnerability is CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released by Gjoko Krstic as 49634. The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2021-47726 since 12/07/2025. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/01/2026). The MITRE ATT&CK project declares the attack technique as T1552.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-206084). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.8
VulDB Temp Score: 8.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (VulnCheck): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Insufficiently protected credentials
CWE: CWE-522
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/07/2025 CVE reserved
12/31/2025 +24 days Advisory disclosed
12/31/2025 +0 days VulDB entry created
01/01/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: 49634
Researcher: Gjoko Krstic
Status: Not defined

CVE: CVE-2021-47726 (🔒)
GCVE (CVE): GCVE-0-2021-47726
GCVE (VulDB): GCVE-100-339256
EUVD: 🔒

Entryinfo

Created: 12/31/2025 20:14
Updated: 01/01/2026 23:01
Changes: 12/31/2025 20:14 (77), 01/01/2026 23:01 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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