CVE-2026-18584: Access Control Flaw (CVSS 5.4)

Description

A security vulnerability has been detected in GL.iNet E5800, E750, X2000, X3000, XE3000 and XE300 up to 20260707. Impacted is an unknown function of the file /sdk/v1 of the component eSIM LPA API. Such manipulation leads to improper authorization. The attack can only be initiated within the local network. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Is your site exposed to CVE-2026-18584?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

EPSS — Exploit Prediction

0.0023

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-266 CWE-266

CWE-285 CWE-285

References

Other References

https://github.com/gl-inet/CVE-issues/blob/main/4.0.0/Unauthenticated%20access%20to%20eSIM%20LPA%20API%20via%20nginx%20proxy%20bypass.md https://vuldb.com/cve/CVE-2026-18584 https://vuldb.com/submit/849283 https://vuldb.com/vuln/385413 https://vuldb.com/vuln/385413/cti

Frequently Asked Questions

What is CVE-2026-18584? +

A security vulnerability has been detected in GL.iNet E5800, E750, X2000, X3000, XE3000 and XE300 up to 20260707. Impacted is an unknown function of the file /sdk/v1 of the component eSIM LPA API. Such manipulation leads to improper authorization. The attack can only be initiated within the local network. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2026-18584? +

CVE-2026-18584 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0023, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-18584? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2024-56513

Karmada is a Kubernetes management system that allows users to run cloud-native applications across multiple Kubernetes clusters and clouds. Prior …

CVE-2025-26523

This vulnerability exists in RupeeWeb trading platform due to insufficient authorization controls on certain API endpoints handling addition and deletion …

CVE-2025-0131

An incorrect privilege management vulnerability in the OPSWAT MetaDefender Endpoint Security SDK used by the Palo Alto Networks GlobalProtect™ app …

CVE-2025-48741

A Broken Access Control vulnerability in StrangeBee TheHive 5.2.0 before 5.2.16, 5.3.0 before 5.3.11, and 5.4.0 before 5.4.10 allows remote, …

CVE-2025-4228

An incorrect privilege assignment vulnerability in Palo Alto Networks Cortex® XDR Broker VM allows an authenticated administrative user to execute …

CVE-2025-0139

An incorrect privilege assignment vulnerability in Palo Alto Networks Autonomous Digital Experience Manager allows a locally authenticated low privileged user …

CVE-2026-18584