Use After Free in Webkitgtk

CVE-2020-13558

A code execution vulnerability exists in the AudioSourceProviderGStreamer functionality of Webkit WebKitGTK 2.30.1. A specially crafted web page can lead to a use after free.

Vulnerability class: Use-After-Free

EPSS: 0.018 (76.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

  • Webkitgtk — versions 2.30.1
  • N/a Webkit — versions Webkit WebKitGTK 2.30.1

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-13558?
CVE-2020-13558 is a high-severity vulnerability in Webkitgtk, classified under Use After Free. CVSS score: 8.8/10. Published 2021-03-03.
How severe is CVE-2020-13558?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2020-13558 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.