CVE-2026-27514Network attack vector

Credential disclosure via plaintext configuration download

Published Feb 23, 2026 · Updated Feb 23, 2026

Sensitive information exposure in Tenda F3 firmware 12.01.01.55_multi allows remote authenticated users to obtain router credentials. The configuration download response returns the router and administrative passwords in plaintext and omits Cache-Control directives. Low-privilege access can disclose credentials remotely and leave them recoverable from browser caches by local users or processes.

CVSS severity7.1
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in Tenda F3 firmware 12.01.01.55_multi allows remote authenticated users to obtain router credentials. The configuration download response returns the router and administrative passwords in plaintext and omits Cache-Control directives. Low-privilege access can disclose credentials remotely and leave them recoverable from browser caches by local users or processes.

The record

CVE
CVE-2026-27514
Published
Feb 23, 2026
Updated
Feb 23, 2026
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
Tenda F3
Classifications
CWE-201, CWE-525, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=12.01.01.55_multi

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · Tenda F3version=0 <=12.01.01.55_multi

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
CWE-525Use of Web Browser Cache Containing Sensitive Information
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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