HIGH

CVE-2018-3843

CVSS v3

8.8

HIGH

EPSS Score

33.7%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

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.

Technical details

Published
4/19/2018

Frequently asked questions

What is CVE-2018-3843?

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.

Is CVE-2018-3843 actively exploited?

Active exploitation of CVE-2018-3843 has not been confirmed. The EPSS score is 33.7%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3843?

CVE-2018-3843 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2018-3843 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.