Rapid7

vulnerability

Arch Linux: Arbitrary code execution (CVE-2020-6819)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Apr 24, 2020
Added
Jul 11, 2025
Modified
Mar 25, 2026

Description

A use-after-free vulnerability has been found in Firefox before 74.0.1 and Thunderbird before 68.7.0 where under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. Mozilla is aware of targeted attacks in the wild abusing this flaw.

Solution

arch-linux-upgrade-latest

References

    Title
    Rapid7 Labs

    2026 Global Threat Landscape Report

    The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.