CVE-2026-100804

Summary

This flaw allows attackers to escape the sandbox by exploiting a use-after-free vulnerability in the Preferences: Backend component, leading to potential code execution.

Exploitability

Exploitation requires specific conditions and is moderately difficult, as it involves precise timing and control over memory management.

Blast radius

If exploited, this vulnerability could lead to full system compromise, allowing attackers to execute arbitrary code with the privileges of the affected user.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to Firefox 157 or later.

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.