CVE-2026-27514 (GCVE-0-2026-27514)

Vulnerability from cvelistv5 – Published: 2026-02-23 16:27 – Updated: 2026-05-11 23:11
VLAI
Title
Tenda F3 Plaintext Credential Exposure in Configuration Download
Summary
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.
Severity
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
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-23 18:29 UTC
CWE
  • CWE-201 - Insertion of Sensitive Information Into Sent Data
  • CWE-525 - Use of Web Browser Cache Containing Sensitive Information
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7808 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Shenzhen Tenda Technology Co., Ltd. Tenda F3 Affected: 0 , ≤ 12.01.01.55_multi (custom)
    cpe:2.3:o:tenda:f3_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc.
Show details on NVD website
To clipboard 

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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