CVE-2026-18584

GL.iNet E5800/E750/X2000/X3000/XE3000/XE300 eSIM LPA API v1 improper authorization

5.3 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Adjacent network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: Low
Availability: Low

Exploit likelihood

0.35%Up 0.1 points since Aug 3, 2026

What each source reports

CVE List Score used 5.3

GL.iNet E5800/E750/X2000/X3000/XE3000/XE300 eSIM LPA API v1 improper authorization

Record: CVE-2026-18584
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:R
CVSS 3.0: 5.4 MediumCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:R
CVSS 2.0: 4.8 AV:A/AC:L/Au:N/C:N/I:P/A:P/E:ND/RL:ND/RC:C
Weakness: CWE-285, CWE-266
Updated: 2026-11-02

EUVDEUVD-2026-52153 5.3

Record: EUVD-2026-52153
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
Updated: 2026-11-02

GitHub AdvisoriesGHSA-ww63-fp7c-4c6q 5.3

A security vulnerability has been detected in GL.iNet E5800, E750, X2000, X3000, XE3000 and XE300...

Record: GHSA-ww63-fp7c-4c6q
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness: CWE-266
Updated: 2026-11-02

NVD 5.3

Record: CVE-2026-18584
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 5.4 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS 2.0: 4.8 MediumAV:A/AC:L/Au:N/C:N/I:P/A:P
Weakness: CWE-266, CWE-285
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-18584 is a medium vulnerability (CVSS 5.3) in Gl.inet E5800, published August 3, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 29th percentile. No source names a fixed version.