CVE-2023-40014 affects OpenZeppelin Contracts versions 4.0.0 through 4.9.2, where contracts using ERC2771Context with a custom trusted forwarder might incorrectly return address(0) for _msgSender if calldata is shorter than 20 bytes. This is a medium severity vulnerability (CVSS 5.3) with low impact on integrity, as it's not common with standard forwarders. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog. The issue has been resolved in version 4.9.3.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.0.0, < 4.9.3CPE matchmatch criteria | cpe:2.3:a:openzeppelin:openzeppelin_contracts:*:*:*:*:*:node.js:*:* | ||
>= 4.0.0, < 4.9.3CPE matchmatch criteria | cpe:2.3:a:openzeppelin:openzeppelin_contracts-upgradable:*:*:*:*:*:node.js:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
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