CVE-2018-3956

HIGHCVSS 7.1/10EPSS 49.57%

Last modified

CVE-2018-3956 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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. EPSS estimates a 49.57% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.1/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

EPSS Probability
49.57%

98.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FoxitsoftwarePhantompdf<= 9.3.0.10826
FoxitsoftwareReader<= 9.3.0.10826

References

Timeline

Published
Last Modified
Status
Modified

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.
How severe is CVE-2018-3956?
CVE-2018-3956 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 49.57% probability of exploitation in the next 30 days.
How do I fix CVE-2018-3956?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-3956?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST