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CVE-2026-127273

Linksys EA8100 JNAP API IsAdminPasswordDefault missing authentication

  • Medium 5.3
  • A public exploit reference is listed

Description

A vulnerability has been found in Linksys EA8100 1.0.3.216940. This affects the function GetWANStatus/GetWANStatus3/IsAdminPasswordDefault of the component JNAP API. The manipulation leads to missing authentication. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key facts

Published
12 Nov 2026
Last changed
12 Nov 2026
Assigned by
VulDB
EPSS
0.388% likely to be exploited in the next 30 days, higher than 33.482% of CVEs (scores for 15 Nov 2026)

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 5.3CVSS 4.0, Mediumfrom the CNA (VulDB)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
  • 4.3CVSS 3.1, Mediumfrom the CNA (VulDB)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
  • 4.3CVSS 3.0, Mediumfrom the CNA (VulDB)CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
  • 5.0CVSS 2.0, Mediumfrom the CNA (VulDB)AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:C

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
LinksysEA8100
  • 1.0.3.216940 (affected)

Timeline

  1. 12 Nov 2026 Advisory disclosed
  2. 12 Nov 2026 VulDB entry created
  3. 12 Nov 2026 VulDB entry last update
  4. 12 Nov 2026 Published

Weakness

References