Use After Free in Foxitsoftware Foxit Reader
CVE-2018-9966
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.1.1049. 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 handling of Calculate actions of TextBox objects. 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 vulnerability to execute code under the context of the current process. Was ZDI-CAN-5570.
Vulnerability class: Use-After-Free
EPSS: 0.032 (86.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Foxitsoftware Foxit_reader
- Foxitsoftware Phantompdf
- N/a — versions n/a
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-9966?
- CVE-2018-9966 is a high-severity vulnerability in Foxitsoftware Foxit Reader, classified under Use After Free. CVSS score: 8.8/10. Published 2018-05-17.
- How severe is CVE-2018-9966?
- High severity. CVSS v3 base score is 8.8 out of 10.