An issue was discovered in Foxit Reader and PhantomPDF before 10.1. If TslAlloc attempts to allocate thread local storage but obtains an unacceptable index value, V8 throws an exception that leads to a write access violation (and read access violation).
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26535
Reference (s):
- https://www.foxitsoftware.com/support/security-bulletins.html