CVE-2026-27512

MEDIUM

Tenda F3 V12.01.01.55 - XSS

Title source: llm

Description

Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a content-type confusion vulnerability in the administrative interface. Responses omit the X-Content-Type-Options: nosniff header and include attacker-influenced content that can be reflected into the response body. Under affected browser behaviors, MIME sniffing may cause the response to be interpreted as active HTML, enabling script execution in the context of the administrative interface.

References (2)

[Product] https://www.tendacn.com/product/F3

[Third Party Advisory] https://www.vulncheck.com/advisories/tenda-f3-reflected-script-execution-via-missing-nosniff-header

Scores

CVSS v3 6.1

EPSS 0.0004

EPSS Percentile 12.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79 CWE-116

Status published

Products (1)

tenda/f3_firmware < 12.01.01.55_multi

Published Feb 23, 2026

Tracked Since Feb 23, 2026