RCE in Tenda Ac8
CVE-2026-4253
A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function route_set_user_policy_rule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.004 (63.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Tenda Ac8 — versions 16.03.50.11, 5.0
- Tenda Ac8_firmware — versions 16.03.50.11
Weakness classification (CWE)
References
- VDB-351211 | Tenda AC8 Web UploadCfg route_set_user_policy_rule os command injection (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-351211 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #771771 | Tenda AC8 V5 V16.03.50.11 OS Command Injection (Exploit, Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-4253?
- CVE-2026-4253 is a medium-severity vulnerability in Tenda Ac8, classified under Command Injection. CVSS score: 4.7/10. Published 2026-03-16.
- How severe is CVE-2026-4253?
- Medium severity. CVSS v3 base score is 4.7 out of 10.