cvedb.io
CVE-2022-31170
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2022-07-22T04:15:14.547 · Last modified 2026-06-17T04:44:57.307

Summary

OpenZeppelin Contracts is a library for smart contract development. Versions 4.0.0 until 4.7.1 are vulnerable to ERC165Checker reverting instead of returning `false`. `ERC165Checker.supportsInterface` is designed to always successfully return a boolean, and under no circumstance revert. However, an incorrect assumption about Solidity 0.8's `abi.decode` allows some cases to revert, given a target contract that doesn't implement EIP-165 as expected, specifically if it returns a value other than 0 or 1. The contracts that may be affected are those that use `ERC165Checker` to check for support for an interface and then handle the lack of support in a way other than reverting. The issue was patched in version 4.7.1.

Affected products

openzeppelin — contracts

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.