CVE-2026-5527 MEDIUM

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

Vendor Tenda
Product 4G03 Pro
Weakness CWE-321
Published April 4, 2026
Last update April 6, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 4, 2026 CVE published
April 6, 2026 Record updated