Description: A use-after-free vulnerability exists in the JavaScript engine of Foxit Software’s PDF Reader, version 10.1.3.37598. A specially crafted PDF document can trigger the reuse of previously freed memory, which can lead to arbitrary code execution. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
CVE-2021-21831
Published Date: 2021-08-05T21:15Z
Last Modified: 2022-07-21T11:49Z
CVSS Score: 8.8 (HIGH)
EPSS Score: 0.39%
Risk Score: 6.16 (HIGH)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
8.8 |
EPSS:
0.39%
Mitre ATT&CK Technical v15.1
T1059.007 – JavaScript
T1204.002 – Malicious File
T1592.002 – Software
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
Vendor - Produce - Version
pdf_reader - foxit
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