Is CVE-2023-30542 actively exploited?

No active exploitation of CVE-2023-30542 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-30542 be exploited remotely?

Yes. CVE-2023-30542 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-30542?

CVE-2023-30542 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2023-30542

HIGH

CVE-2023-30542

CWE-20Published: April 16, 2023· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents what will eventually execute, but the proposal parameters as queried through `getActions` appear to respect the original intended calldata. This issue has been patched in 4.8.3. As a workaround, ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters.

NVD Source

Technical Analysis

CVE-2023-30542 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.