HIGH

CVE-2018-3956

CVSS v3

7.1

HIGH

EPSS Score

16.1%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

An exploitable out-of-bounds read vulnerability exists in the handling of certain XFA element attributes of Foxit Software's PDF Reader version 9.1.0.5096. A specially crafted PDF document can trigger an out-of-bounds read, which can disclose sensitive memory content and aid in exploitation when coupled with another vulnerability. An attacker needs to trick the user to open 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
1/30/2019

Frequently asked questions

What is CVE-2018-3956?

An exploitable out-of-bounds read vulnerability exists in the handling of certain XFA element attributes of Foxit Software's PDF Reader version 9.1.0.5096. A specially crafted PDF document can trigger an out-of-bounds read, which can disclose sensitive memory content and aid in exploitation when coupled with another vulnerability. An attacker needs to trick the user to open 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-2018-3956 actively exploited?

Active exploitation of CVE-2018-3956 has not been confirmed. The EPSS score is 16.1%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-3956?

CVE-2018-3956 has a CVSS v3 base score of 7.1 (HIGH severity).

Is CVE-2018-3956 affecting your environment?

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