Information disclosure in Tenda Ac21
CVE-2026-2148
A security vulnerability has been detected in Tenda AC21 16.03.08.16. Affected is an unknown function of the file /cgi-bin/DownloadFlash of the component Web Management Interface. The manipulation leads to information disclosure. It is pos…
Vulnerability class: Information Disclosure
EPSS: 0.000 (6.3th 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/E:P/RL:W/RC:R.
Affected products
- Tenda Ac21 — versions 16.03.08.16
Weakness classification (CWE)
References
- VDB-344850 | Tenda AC21 Web Management DownloadFlash information disclosure (vdb-entry, technical-description)
- VDB-344850 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #747557 | Tenda AC21 V16.03.08.16 Missing Critical Step in Authentication (third-party-advisory)
- github.com/master-abc/cve/issues/27 (exploit, issue-tracking)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-2148?
- CVE-2026-2148 is a medium-severity vulnerability in Tenda Ac21, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-02-08.
- How severe is CVE-2026-2148?
- Medium severity. CVSS v3 base score is 5.3 out of 10.