CVE-2020-13557CWE-416

A use after free vulnerability exists in the JavaScript engine of Foxit Software’s Foxit PDF Reader, version 10.1.0.37527

High · published December 22, 2020

Patch now

High probability of exploitation

CVSS calls it high at 8.8. It sits in the 99.4th percentile for exploit probability.

CVSS v3.0
8.8
EPSS
70%
Percentile
99.4
In the wild
Unconfirmed
What it is

A use after free vulnerability exists in the JavaScript engine of Foxit Software’s Foxit PDF Reader, version 10.1.0.37527. A specially crafted PDF document can trigger reuse of previously free memory which can lead to 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.

The record
Technical detail
CVSS v3.0
8.8 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.70295 · 99.4th percentile
Weakness
CWE-416 · Use After Free
Published
2020-12-22T17:57Z
EPSS history
Timeline
  • 22 DEC 17:57Z
    A use after free vulnerability exists in the JavaScript engine of Foxit Software’s Foxit PDF Reader, version 10.1.0.37527
    cvelistv5