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CVE-2018-0665

6.8 · MEDIUM

Yamaha routers RT57i Rev.8.00.95 and earlier, RT58i Rev.9.01.51 and earlier, NVR500 Rev.11.00.36 and earlier, RTX810 Rev.11.01.31 and earlier, allow an administrative user to embed arbitrary script…

Published Jan 9, 2019EPSS 0.65%

Overview

CVE-2018-0665 is a medium-severity vulnerability. It was published on January 9, 2019 and has a CVSS 3.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 6.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Yamaha routers RT57i Rev.8.00.95 and earlier, RT58i Rev.9.01.51 and earlier, NVR500 Rev.11.00.36 and earlier, RTX810 Rev.11.01.31 and earlier, allow an administrative user to embed arbitrary scripts to the configuration data through a certain form field of the configuration page, which may be executed on another administrative user's web browser. This is a different vulnerability from CVE-2018-0666.

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

Refwww.rtpro.yamaha.co.jp/RT/FAQ/Security/JVN69967692.htmlRefflets-w.com/solution/kiki_info/info/180829.htmlRefjvn.jp/en/jp/JVN69967692/index.htmlRefweb116.jp/ced/support/news/contents/2018/20180829b.htmlRefwww.rtpro.yamaha.co.jp/RT/FAQ/Security/JVN69967692.htmlRefflets-w.com/solution/kiki_info/info/180829.htmlRefjvn.jp/en/jp/JVN69967692/index.htmlRefweb116.jp/ced/support/news/contents/2018/20180829b.html

How CyberStrike helps

Frequently asked questions

What is CVE-2018-0665?

CVE-2018-0665 is a medium-severity vulnerability. It was published on January 9, 2019 and has a CVSS 3.0 base score of 6.8 (MEDIUM).

How severe is CVE-2018-0665?

This vulnerability has a CVSS 3.0 base score of 6.8, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2018-0665?

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-2018-0665?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-0665 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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