Clickjacking Vulnerability in Tenda F3 Wireless Router Firmware
CVE-2026-27511

5.1MEDIUM

Key Information:

Vendor

Shenzhen Tenda Technology Co., Ltd.

Status
Tenda F3
Vendor
CVE Published:
23 February 2026

What is CVE-2026-27511?

The Tenda F3 Wireless Router firmware version V12.01.01.55_multi has a vulnerability in its web-based administrative interface that lacks the X-Frame-Options header. This oversight allows an attacker to embed the administrative pages within an iframe on a malicious website. As a result, an unsuspecting authenticated administrator could be manipulated into performing unintended actions, which can lead to unauthorized modifications to the router's configuration settings.

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Affected Version(s)

Tenda F3 0 <= 12.01.01.55_multi

References

https://www.tendacn.com/product/F3
product
https://www.vulncheck.com/advisories/tenda-f3-clickjackin...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc.
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