Vulnerability Database

309,237

Total vulnerabilities in the database

CVE-2021-39593

An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function swf_FontExtract_DefineFontInfo() located in swftext.c. It allows an attacker to cause Denial of Service.

  • Published: Sep 20, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-39593
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.3
  • AV:N/AC:M/Au:N/C:N/I:N/A:P

CWEs:

Software From Fixed in
swftools / swftools - 2020-07-10.x