Privilege escalation in Tenda 4g03 Pro
CVE-2026-5526
A security flaw has been discovered in Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1. Affected by this vulnerability is an unknown functionality of the file /bin/httpd. The manipulation results in improper access controls. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (48.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.003
Affected products
- Tenda 4g03 Pro — versions 1.0, 1.1, 04.03.01.0
- Tenda 4g03 Pro — versions 1.0
- Tenda 4g03 Pro Firmware — versions 04.03.01.53
Weakness classification (CWE)
References
- vuldb.com/vuln/355279 (VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/355279/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/782052 (VDB Entry, Third Party Advisory, third-party-advisory)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2026-5526?
- CVE-2026-5526 is a high-severity vulnerability in Tenda 4g03 Pro, classified under Incorrect Privilege Assignment. CVSS score: 7.3/10. Published 2026-04-04.
- How severe is CVE-2026-5526?
- High severity. CVSS v3 base score is 7.3 out of 10.