cve.bz

CVE-2026-127276 Linksys EA8100 Web UI cookie httponly flag

2.9 lowEPSS 0.5%

Low (2.9) in linksys ea8100. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.

On this page
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.

Severity

CVSS 4.0

2.9 low
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

CVSS 3.1

3.7 low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS
0.5% estimated probability of exploitation activity in the next 30 days; 45th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: PoC · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWEs
CWE-732 Incorrect Permission Assignment for Critical Resource
CWE-1004 Sensitive Cookie Without 'HttpOnly' Flag
OWASP Top 10
A01:2025 Broken Access Control, A02:2025 Security Misconfiguration
Published
Modified
Assigned by
VulDB (CNA)
NVD analysis
Deferred: the NVD does not plan to analyze it
Record from
the NVD, synced

Ask an AI about this CVE

Show the promptExplain CVE-2026-127276 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-127276?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-127276?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-127276 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.

Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.

Badge for a README or a site

CVE-2026-127276

An image that stays current: it is drawn from the data each time it is fetched (a host that proxies images, as GitHub does, may show its copy for a while). Markdown:

[![CVE-2026-127276](https://cve.bz/cve/badge/CVE-2026-127276.svg)](https://cve.bz/cve/CVE-2026-127276)

HTML:

<a href="https://cve.bz/cve/CVE-2026-127276"><img src="https://cve.bz/cve/badge/CVE-2026-127276.svg" alt="CVE-2026-127276"></a>

Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
Linksys EA81001.0.3.216940

Attack patterns (CAPEC)

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits. More on the page of CWE-732 (11).

History

  1. Score 6.3 → 2.9 low
  2. The NVD deferred its analysis

Changes since this site first stored the record. The same for every record: /api/public/changes.

References

Check your stackJSON