CVE-2026-31850— Plaintext Storage of Credentials in Configuration Backup in Nexxt Nebula 300+
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I. Basic Information for CVE-2026-31850
Vulnerability Information
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Vulnerability Title
Plaintext Storage of Credentials in Configuration Backup in Nexxt Nebula 300+
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 stores sensitive information, including administrative credentials and WiFi pre-shared keys, in plaintext within exported configuration backup files. These backup files can be obtained through legitimate functionality or other weaknesses and do not apply encryption or hashing, allowing attackers to directly extract sensitive information.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
明文存储口令
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nexxt Solutions Nebula 300+ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nexxt Solutions Nebula 300+是美国Nexxt Solutions公司的一款无线路由器。 Nexxt Solutions Nebula 300+ 12.01.01.37及之前版本存在安全漏洞，该漏洞源于敏感信息以明文存储于备份文件，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Nexxt Solutions | Nebula 300+ | <= 12.01.01.37 | - |
II. Public POCs for CVE-2026-31850
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Nexxt Solutions · 2026-03-23 · 6 CVEs total
| CVE-2026-31846 | 6.5 MEDIUM | Unauthenticated Credential Disclosure via /goform/ate in Nexxt Nebula 300+ |
| CVE-2026-31849 | Missing CSRF Protection on Administrative Endpoints in Nexxt Nebula 300+ | |
| CVE-2026-31847 | Hidden Functionality Enables Remote Telnet Activation via /goform/setSysTools in Nexxt Neb | |
| CVE-2026-31848 | Reversible ecos_pw Cookie Allows Authentication Bypass in Nexxt Nebula 300+ | |
| CVE-2026-31851 | Lack of Rate Limiting Enables Brute-Force Attacks in Nexxt Nebula 300+ |
IV. Related Vulnerabilities
Same product: Nebula 300+
Same vendor: Nexxt Solutions
- CVE-2026-31851
Lack of Rate Limiting Enables Brute-Force Attacks in Nexxt N - CVE-2026-31849
Missing CSRF Protection on Administrative Endpoints in Nexxt - CVE-2026-31848
Reversible ecos_pw Cookie Allows Authentication Bypass in Ne - CVE-2026-31847
Hidden Functionality Enables Remote Telnet Activation via /g - CVE-2026-31846
Unauthenticated Credential Disclosure via /goform/ate in Nex
V. Comments for CVE-2026-31850
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