Use After Free in Foxit Software Pdf Reader
CVE-2018-3942
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused, resulting in arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability.
Vulnerability class: Use-After-Free
EPSS: 0.032 (86.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Foxit Software Pdf Reader — versions 9.1.0.5096
- Foxitsoftware Phantompdf
- Foxitsoftware Reader
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- talos-cna@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)
- nvd@nist.gov (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-3942?
- CVE-2018-3942 is a high-severity vulnerability in Foxit Software Pdf Reader, classified under Use After Free. CVSS score: 8.8/10. Published 2018-10-08.
- How severe is CVE-2018-3942?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-3942 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.