Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-31850— Plaintext Storage of Credentials in Configuration Backup in Nexxt Nebula 300+

Quick assessment

Affected
Nexxt Solutions Nebula 300+
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 6.8 · Medium EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
Nexxt Solutions Nebula 300+ <= 12.01.01.37 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-31850

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Plaintext Storage of Credentials in Configuration Backup in Nexxt Nebula 300+
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
明文存储口令
Source: CVE Program / CVE List V5
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
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-31850

请登录查看更多情报信息。

Vendor Pages for CVE-2026-31850 (1)

Other References for CVE-2026-31850 (1)

Same Patch Batch · Nexxt Solutions · 2026-03-23 · 6 CVEs total

CVE-2026-31848 8.7 HIGH Reversible ecos_pw Cookie Allows Authentication Bypass in Nexxt Nebula 300+
CVE-2026-31847 8.5 HIGH Hidden Functionality Enables Remote Telnet Activation via /goform/setSysTools in Nexxt Neb
CVE-2026-31851 7.7 HIGH Nexxt Nebula 300+ - Lack of Rate Limiting Enables Brute-Force Attacks
CVE-2026-31849 7.2 HIGH Missing CSRF Protection on Administrative Endpoints in Nexxt Nebula 300+
CVE-2026-31846 6.5 MEDIUM Unauthenticated Credential Disclosure via /goform/ate in Nexxt Nebula 300+

IV. Related Vulnerabilities

Same product: Nebula 300+
Same vendor: Nexxt Solutions
Same weakness: CWE-256

V. Comments for CVE-2026-31850

No comments yet

Leave a comment