VULNERABILITY INTELLIGENCE

CVE-2020-13543

CVSS score8.8 HIGH

EPSS probability3.49%

CISA KEVNot currently listed

Published2020-12-03

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 code execution vulnerability exists in the WebSocket functionality of Webkit WebKitGTK 2.30.0. A specially crafted web page can trigger a use-after-free vulnerability which can lead to remote code execution. An attacker can get a user to visit a webpage to trigger this vulnerability.

Weakness classification

nvd@nist.gov: CWE-416

Primary references

talos-cna@cisco.com — Third Party Advisory
talos-cna@cisco.com — Exploit, Technical Description, Third Party Advisory
talos-cna@cisco.com — Not Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Not Applicable, Third Party Advisory