Vulnerability in Tenda 4g03 Pro
CVE-2026-5527
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 cau…
EPSS: 0.000 (2.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Tenda 4g03 Pro — versions 1.0, 1.0re, 01.bin
- Tenda 4g03_pro — versions 1.0
- Tenda 4g03_pro_firmware — versions 04.03.01.53
Weakness classification (CWE)
References
- VDB-355280 | Tenda 4G03 Pro ECDSA P-256 Private Key server.key hard-coded key (Third Party Advisory, VDB Entry, vdb-entry)
- VDB-355280 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #782053 | Tenda 4G03 Pro V1.0 V04.03.01.53 Cryptographic Issues (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5527?
- CVE-2026-5527 is a medium-severity vulnerability in Tenda 4g03 Pro, classified under CWE-320. CVSS score: 5.3/10. Published 2026-04-05.
- How severe is CVE-2026-5527?
- Medium severity. CVSS v3 base score is 5.3 out of 10.