VULNERABILITY INTELLIGENCE

CVE-2021-42203

CVSS score7.8 HIGH

EPSS probability1.25%

CISA KEVNot currently listed

Published2022-06-02

Last modified2026-06-17

Description

An issue was discovered in swftools through 20201222. A heap-use-after-free exists in the function swf_FontExtract_DefineTextCallback() located in swftext.c. It allows an attacker to cause code execution.