Vulnerability Details : CVE-2018-3993
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's Foxit PDF Reader version 9.2.0.9297. 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. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
Vulnerability category: Memory Corruption
Exploit prediction scoring system (EPSS) score for CVE-2018-3993
Probability of exploitation activity in the next 30 days: 0.47%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 75 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2018-3993
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
8.0
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
2.1
|
5.9
|
Talos |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2018-3993
-
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-3993
-
https://www.foxitsoftware.com/support/security-bulletins.php
Security Bulletins | Foxit SoftwarePatch;Vendor Advisory
-
http://www.securitytracker.com/id/1041769
Foxit Reader Multiple Flaws Let Remote Users Deny Service, Execute Arbitrary Code, and Obtain Potentially Sensitive Information - SecurityTrackerThird Party Advisory;VDB Entry
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https://talosintelligence.com/vulnerability_reports/TALOS-2018-0661
TALOS-2018-0661 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
Products affected by CVE-2018-3993
- cpe:2.3:a:foxitsoftware:reader:*:*:*:*:*:*:*:*
- cpe:2.3:a:foxitsoftware:phantompdf:*:*:*:*:*:*:*:*