CVE-2026-127275

CRITICAL 10.0

Linksys EA8100 JNAP API ui_server.lua SetUnsecuredWiFiWarning missing authentication

CVSS Score

10.0

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was determined in Linksys EA8100 1.0.3.216940. This issue affects the function SetRemoteSetting/SetUnsecuredWiFiWarning of the file ui_server.lua of the component JNAP API. This manipulation of the argument isEnabled/enabled causes missing authentication. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-306 CWE-287
Vendor	linksys
Product	ea8100
Published	Nov 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Linksys / EA8100

1.0.3.216940

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/436430 vuldb.com: https://vuldb.com/vuln/436430/cti vuldb.com: https://vuldb.com/cve/CVE-2026-127275 vuldb.com: https://vuldb.com/submit/1040997 github.com: https://github.com/geo-chen/oss/blob/main/Linksys.md#finding-3-unauthenticated-write-access-to-remote-management-pairing-state-and-unsecured-wifi-warning-flag linksys.com: https://www.linksys.com/

Credits

🔍 geochen (VulDB User) VulDB CNA Team