CVE-2026-100819

Summary

This flaw allows an attacker to escape the sandbox due to incorrect boundary conditions in the XPCOM component, which could lead to arbitrary code execution.

Exploitability

Exploitation is moderately difficult and requires specific conditions, such as the presence of a vulnerable XPCOM component.

Blast radius

If exploited, this vulnerability could result in full system compromise, allowing an attacker to execute arbitrary code with the privileges of the affected application.

Detection

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

Prioritized remediation

Upgrade to Firefox ESR 153.4, Firefox 157, Firefox ESR 115.42, or Firefox ESR 140.17 or later.

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