Vulnerability in Shenzhen Tenda Technology Co., Ltd. F3
CVE-2026-27511
Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a clickjacking vulnerability in the web-based administrative interface. The interface does not set the X-Frame-Options header, allowing attacker-controlled sites to embed administrative pages in an iframe and trick an authenticated administrator into unintended interactions that may result in unauthorized configuration changes.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (23.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
Weakness classification (CWE)
References
- www.tendacn.com/product/F3 (Product, product)
- www.vulncheck.com/advisories/tenda-f3-clickjacking-in-web-management-interface (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-27511?
- CVE-2026-27511 is a medium-severity vulnerability in Shenzhen Tenda Technology Co., Ltd. F3, classified under Improper Restriction of Rendered UI Layers or Frames (Clickjacking). CVSS score: 4.3/10. Published 2026-02-23.
- How severe is CVE-2026-27511?
- Medium severity. CVSS v3 base score is 4.3 out of 10.