Is CVE-2018-20249 actively exploited?

No active exploitation of CVE-2018-20249 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-20249 be exploited remotely?

Yes. CVE-2018-20249 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-20249?

CVE-2018-20249 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2018-20249

HIGH

CVE-2018-20249

CWE-787Published: December 24, 2018· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

In Foxit Quick PDF Library (all versions prior to 16.12), issue where loading a malformed or malicious PDF containing invalid xref entries using the DAOpenFile or DAOpenFileReadOnly functions may result in an access violation caused by out of bounds memory access.

NVD Source

Technical Analysis

CVE-2018-20249 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.