Out-of-bounds Read Affecting @openzeppelin/contracts package, versions >=5.2.0 <5.4.0
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- published18 Jul 2025
- disclosed17 Jul 2025
- creditUnknown
Introduced: 17 Jul 2025
NewCVE-2025-54070 (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 @openzeppelin/contracts to version 5.4.0 or higher.
Overview
@openzeppelin/contracts is a library for contract development.
Affected versions of this package are vulnerable to Out-of-bounds Read via the lastIndexOf function when the buffer is empty and the pos argument is not set to its maximum value. An attacker can cause the function to access memory outside the intended buffer, potentially resulting in unexpected behavior such as returning an invalid index or causing a revert, by supplying crafted arguments.