High severity · published Oct 2, 2018
CVE-2018-3943
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096
8.8
CVSS
2.6%
EPSS
No
On KEV
Description
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. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
Phantompdf · Foxitsoftware
through 9.2.0.9297 · source: NVD
RE
Reader · Foxitsoftware
through 9.2.0.9297 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-3943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-3943
Third Party Advisory
http://www.securitytracker.com/id/1041769
Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0610
Patch
https://www.foxitsoftware.com/support/security-bulletins.php
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