CVE-2026-4725 - Vulnerability Analysis

Overview

Firefox < 149 contains a use-after-free vulnerability caused by improper memory handling in the Graphics: Canvas2D component, letting attackers escape sandbox restrictions, exploit requires crafted content execution.

Severity & Score

Impact

Attackers can escape sandbox restrictions, potentially leading to full system compromise.

Mitigation

Update to version 149 or later.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2017108
• https://www.mozilla.org/security/advisories/mfsa2026-20/
• https://www.mozilla.org/security/advisories/mfsa2026-23/

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Mar 24, 2026

🔴 CVE-2026-4725 - Critical (10) Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149. 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-4725/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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• Vulnerability Intelligence Dashboard
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