CVE-2020-37289
MEDIUM3.7CVSS v3
—CVSS v2
0.26%
EPSS (exploit probability)
CWE-20CWE
Description
Vyper before 0.3.1 lacks a uint8 type, allowing interface return values declared as uint8, such as ERC20.decimals(), to be stored in uint256 variables without bounds checking. Malicious contracts can return values greater than 255 to manipulate or bypass contract logic that relies on these values.
CVSS v3 vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected routers (0)
No routers currently mapped to this CVE in our database.