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CVE-2018-3843

8.8 · HIGH

An exploitable type confusion vulnerability exists in the way Foxit PDF Reader version 9.0.1.1049 parses files with associated file annotations.

Published Apr 19, 2018CWE-704EPSS 21.56%

Overview

CVE-2018-3843 is a high-severity vulnerability. It was published on April 19, 2018 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. No authentication or special privileges are required for exploitation.

Technical description

An exploitable type confusion vulnerability exists in the way Foxit PDF Reader version 9.0.1.1049 parses files with associated file annotations. A specially crafted PDF document can lead to an object of invalid type to be dereferenced, which can potentially lead to sensitive memory disclosure, and possibly to arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the 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/103942Refwww.securitytracker.com/id/1040733Refwww.talosintelligence.com/vulnerability_reports/TALOS-2018-0526Refwww.securityfocus.com/bid/103942Refwww.securitytracker.com/id/1040733Refwww.talosintelligence.com/vulnerability_reports/TALOS-2018-0526

How CyberStrike helps

Frequently asked questions

What is CVE-2018-3843?

CVE-2018-3843 is a high-severity vulnerability. It was published on April 19, 2018 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2018-3843?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-3843?

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-2018-3843?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-3843 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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