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Vulnerability record · CVE-2026-27514 · published 23 February 2026

CVE-2026-27514: Tenda f3 firmware vulnerability

Tenda · F3 Firmware

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.

7.1 CVSS 4.0 High EPSS 0.39% · top 70.1% CWE-201 · CWE-201CWE-525 · CWE-525
7.1CVSS 4.0 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tendacn.com/product/F3 Product
https://www.vulncheck.com/advisories/tenda-f3-plaintext-credential-exposure-in-configuration-download Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.5CVE-2020-35391Tenda f3 firmware vulnerabilityTenda N300 F3 12.01.01.48 devices allow remote attackers to obtain sensitive information (possibly including an http_passwd line) via a direct reques…EPSS 35%5.6CVE-2025-57569Tenda f3 firmware classic buffer overflow vulnerabilityTenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the portList parameter in /goform/setNAT.EPSS 0.20%5.6CVE-2025-57570Tenda f3 firmware classic buffer overflow vulnerabilityTenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the QosList parameter in goform/setQoS.EPSS 0.20%5.6CVE-2025-57571Tenda f3 firmware classic buffer overflow vulnerabilityTenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow. via the macFilterList parameter in goform/setNAT.EPSS 0.20%5.6CVE-2025-57572Tenda f3 firmware classic buffer overflow vulnerabilityTenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the onlineList parameter in goform/setParentControl.EPSS 0.22%5.6CVE-2025-57573Tenda f3 firmware classic buffer overflow vulnerabilityTenda F3 V12.01.01.48_multi and after is vulnerable to Buffer Overflow via the wifiTimeClose parameter in goform/setWifi.EPSS 0.22%5.1CVE-2026-27511Tenda f3 firmware clickjacking vulnerabilityShenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a clickjacking vulnerability in the web-based administrative interface. The in…EPSS 0.33%5.1CVE-2026-27512Tenda f3 firmware cross-site scripting vulnerabilityShenzhen Tenda F3 Wireless Router firmware V12.01.01.55_multi contains a content-type confusion vulnerability in the administrative interface. Respon…EPSS 0.33%

Source: NIST National Vulnerability Database (record CVE-2026-27514), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.