CVE-2026-18787 — HIGH (8.8)

Vulnerability Description

A vulnerability was identified in GL.iNet AX1800 up to 4.8.3. The affected element is the function remove_rule of the file /usr/share/gl-ngx/oui-rpc.lua of the component RPC Endpoint. The manipulation of the argument args.id leads to command injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-77 CWE-74

References

FAQ

What is CVE-2026-18787?

CVE-2026-18787 is a vulnerability with a CVSS score of 8.8 (HIGH). A vulnerability was identified in GL.iNet AX1800 up to 4.8.3. The affected element is the function remove_rule of the file /usr/share/gl-ngx/oui-rpc.lua of the component RPC Endpoint. The manipulation...

How severe is CVE-2026-18787?

CVE-2026-18787 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-18787?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.