CVE-2018-3943 is a high-severity use-after-free vulnerability in the JavaScript engine of Foxit PDF Reader (version 9.1.0.5096) and PhantomPDF, affecting Windows platforms. This flaw allows an attacker to achieve arbitrary code execution by tricking a user into opening a specially crafted malicious PDF document or visiting a malicious website if the browser plugin is enabled. The vulnerability has a CVSS score of 8.8 (HIGH) due to its network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability, requiring user interaction to exploit. While it has garnered some community discussion and media coverage, there is currently no evidence of active exploitation, nor are public exploit modules available in Metasploit or ExploitDB.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 9.2.0.9297CPE matchmatch criteria | cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:* | ||
<= 9.2.0.9297CPE matchmatch criteria | cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.
Remediation records are not available for this CVE.