VULNERABILITY INTELLIGENCE

CVE-2021-21779

CVSS score8.8 HIGH
EPSS probability2.92%
CISA KEVNot currently listed
Published2021-07-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.

Weakness classification

  • talos-cna@cisco.com: CWE-416
  • nvd@nist.gov: CWE-416

Primary references