CVE-2021-21779
HIGH8.8EPSS 0.51%Published: 7/8/2021Modified: 4/28/2026
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.
Affected packages (2)
- Debian/webkit2gtkfrom 0, < 2.32.3-1
- Debian/wpewebkitfrom 0, < 2.32.3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |