Vulnerability Database

309,961

Total vulnerabilities in the database

CVE-2021-21775

A use-after-free vulnerability exists in the way certain events are processed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. In order to trigger the vulnerability, a victim must be tricked into visiting a malicious webpage.

  • Published: Jul 7, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-21775
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8
  • AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6
  • AV:N/AC:M/Au:S/C:P/I:P/A:P

CWEs:

Software From Fixed in
webkitgtk / webkitgtk 2.30.4 2.30.4.x
fedoraproject / fedora 33 33.x
fedoraproject / fedora 34 34.x
debian / debian_linux 10.0 10.0.x