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.

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 emb…

EPSS: 0.002 (10.8th percentile) — read the EPSS interpretation.

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.

Affected products

Shenzhen Tenda Technology Co., Ltd. F3 — versions 0
Tenda F3
Tenda F3_firmware

Weakness classification (CWE)

CWE-1021 — Improper Restriction of Rendered UI Layers or Frames (Clickjacking)

References

disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (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.