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CVE-2026-127276

Linksys EA8100 Web UI cookie httponly flag

  • Medium 6.3
  • A public exploit reference is listed

Description

A vulnerability was identified in Linksys EA8100 1.0.3.216940. Impacted is an unknown function of the component Web UI. Such manipulation leads to cookie without 'httponly' flag. It is possible to launch the attack remotely. This attack is characterized by high complexity. The exploitability is considered difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key facts

Published
13 Nov 2026
Last changed
13 Nov 2026
Assigned by
VulDB
EPSS
0.518% likely to be exploited in the next 30 days, higher than 44.592% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: poc; Automatable: no; Technical impact: partial

Severity scores

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

  • 6.3CVSS 4.0, Mediumfrom the CNA (VulDB)CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
  • 3.7CVSS 3.1, Lowfrom the CNA (VulDB)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
  • 3.7CVSS 3.0, Lowfrom the CNA (VulDB)CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
  • 2.6CVSS 2.0, Lowfrom the CNA (VulDB)AV:N/AC:H/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. 13 Nov 2026 Published

Weakness

References