Improper Restriction of Operations within the Bounds of a Memory Buffer Affecting Firefox package, versions [,159.0.1)
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- published3 Nov 2026
- disclosed3 Nov 2026
- creditUnknown
Introduced: 3 Nov 2026
NewCVE-2026-120572 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade Firefox to version 159.0.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Restriction of Operations within the Bounds of a Memory Buffer due to improper handling of boundary conditions in the Layout: Block and Inline component. An attacker can cause unexpected behavior or potentially execute arbitrary code by crafting malicious web content that triggers the flaw.