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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-5527— Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key

Quick assessment

Affected
Tenda 4G03 Pro
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.

Tenda 4G03是中国腾达（Tenda）公司的一款无线路由器 Tenda 4G03 Pro 1.0版本、1.0re版本、01.bin版本和04.03.01.53版本存在安全漏洞，该漏洞源于使用硬编码加密密钥。

CVSS 5.3 · Medium EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1552.006 · Group Policy Preferences
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-5527

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in Tenda 4G03 Pro 1.0/1.0re/01.bin/04.03.01.53. Affected by this issue is some unknown functionality of the file /etc/www/pem/server.key of the component ECDSA P-256 Private Key Handler. This manipulation causes use of hard-coded cryptographic key . It is possible to initiate the attack remotely.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用硬编码的密码学密钥
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda 4G03 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda 4G03是中国腾达（Tenda）公司的一款无线路由器 Tenda 4G03 Pro 1.0版本、1.0re版本、01.bin版本和04.03.01.53版本存在安全漏洞，该漏洞源于使用硬编码加密密钥。
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
Tenda 4G03 Pro 1.0 -

II. Public POCs for CVE-2026-5527

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-5527

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-5527 (2)

IV. Related Vulnerabilities

Same product: 4G03 Pro
Same vendor: Tenda
Same weakness: CWE-321

V. Comments for CVE-2026-5527

No comments yet

Leave a comment