SARA / Free Tools / CVE / CVE-2023-30541

CVE-2023-30541 — OpenZeppelin Contracts is a library for secure smart contract development

OpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incom

CVSS
5.3 MEDIUM
EPSS
0.14% (top 66.30%)
CWE
CWE-436
Published
2023-04-17T21:37:29.361Z
Last modified
2025-02-05T20:31:15.423Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

01What is this vulnerability?

OpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incompatible ABI encoding, the proxy could revert while attempting to decode the arguments from calldata. The probability of an…

02Affected products

VendorProductVersions
OpenZeppelinopenzeppelincontracts — @openzeppelin/contracts: >= 3.2.0, < 4.8.3, @openzeppelin/contracts-upgradeable: >=3.2.0, <4.8.3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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