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CVE-2018-0803

4.2 · MEDIUM

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to access information from one domain and inject it into another domain, due to how M…

Published Jan 4, 2018CWE-863EPSS 3.66%

Overview

CVE-2018-0803 is a medium-severity vulnerability. It was published on January 4, 2018 and has a CVSS 3.0 base score of 4.2 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.2, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to access information from one domain and inject it into another domain, due to how Microsoft Edge enforces cross-domain policies, aka "Microsoft Edge Elevation of Privilege Vulnerability".

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.securityfocus.com/bid/102384Refwww.securitytracker.com/id/1040100Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0803Refwww.securityfocus.com/bid/102384Refwww.securitytracker.com/id/1040100Refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0803

How CyberStrike helps

Frequently asked questions

What is CVE-2018-0803?

CVE-2018-0803 is a medium-severity vulnerability. It was published on January 4, 2018 and has a CVSS 3.0 base score of 4.2 (MEDIUM).

How severe is CVE-2018-0803?

This vulnerability has a CVSS 3.0 base score of 4.2, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-0803?

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-2018-0803?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-0803 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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