Paper/Archive/CVE-2026-127275

CVE-2026-127275

Linksys EA8100 — Linksys EA8100 JNAP API ui_server.lua SetUnsecuredWiFiWarning missing authentication

CVSS 10.0 (CNA)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

EA81001.0.3.216940–CNA

Scores by source

VulDB (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

VulDB (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C

VulDB (CNA)10.0CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C

References

writeupvuldb.com/vuln/436430 refvuldb.com/vuln/436430/cti writeupvuldb.com/cve/CVE-2026-127275 writeupvuldb.com/submit/1040997 exploitgithub.com/geo-chen/oss/blob/main/Linksys.md#finding-3-unauthenticated-write-access-to-remote-management-pairing-state-and-unsecured-wifi-warning-flag reflinksys.com