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CVE-2026-18787

8.8 · HIGH

A vulnerability was identified in GL.iNet AX1800 up to 4.8.3.

Published Aug 4, 2026CWE-74EPSS 3.21%

Overview

CVE-2026-18787 is a high-severity vulnerability. It was published on August 4, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/xxianxiayubanmian/iot/blob/main/GL-link%20AX1800.mdRefvuldb.com/cve/CVE-2026-18787Refvuldb.com/submit/857346Refvuldb.com/vuln/385788Refvuldb.com/vuln/385788/cti

How CyberStrike helps

Frequently asked questions

What is CVE-2026-18787?

CVE-2026-18787 is a high-severity vulnerability. It was published on August 4, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-18787?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-18787?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-18787?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-18787 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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