CVE-2019-6766

Name: CVE-2019-6766
Creator: NVD / NIST
Published: 2019-06-03T19:29:03.39+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 2.65%

Last modified Jun 17, 2026

CVE-2019-6766 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.1.16828. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. EPSS estimates a 2.65% chance of exploitation in the next 30 days.

Description

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit Reader 9.4.1.16828. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the removeField method when processing AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-8162.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

2.65%

83.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Foxitsoftware	Foxit Reader	<= 9.4.1.16828
Foxitsoftware	Phantompdf	<= 8.3.9.41099
Foxitsoftware	Phantompdf	>= 9.0.0, <= 9.4.1.16828

References

https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-19-440/Third Party Advisory, VDB Entry
https://www.foxitsoftware.com/support/security-bulletins.phpPatch, Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-19-440/Third Party Advisory, VDB Entry

Timeline

Published: Jun 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-6766?

How severe is CVE-2019-6766?

CVE-2019-6766 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 2.65% probability of exploitation in the next 30 days.

How do I fix CVE-2019-6766?

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-2019-6766?

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

Scan your code now

Source: NVD / NIST