CVE-2026-27514

Tenda F3 Plaintext Credential Exposure in Configuration Download

State: Published
Severity: 7.1 High
Published: Feb 23, 2026
Updated: May 11, 2026
Reserved: Feb 19, 2026

Description

Shenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a sensitive information exposure vulnerability in the configuration download functionality. The configuration download response includes the router password and administrative password in plaintext. The endpoint also omits appropriate Cache-Control directives, which can allow the response to be stored in client-side caches and recovered by other local users or processes with access to cached browser data.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-201 Insertion of Sensitive Information Into Sent Data
CWE-525 Use of Web Browser Cache Containing Sensitive Information

Affected Products

Product	Versions
Tenda F3Shenzhen Tenda Technology Co., Ltd.	12.01.01.55_multi and earlierAffected

References

https://www.tendacn.com/product/F3product
https://www.vulncheck.com/advisories/tenda-f3-plaintext-credential-exposure-in-configuration-downloadthird-party-advisory

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