CVE-2021-48019: vyper 0 to before 0.2.9

Affected technology

vyper · 0 to before 0.2.9
vyperlang

Description’s affected range: before 0.2.9 deploys forwarder proxies through the built-in create_forwarder_to function that report a fixed 4096-byte RETURNDATASIZE rather than the actual return data size

Component: Not specified by the source
Function: that, returns

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 6.3/10) rates confidentiality impact as none; integrity and availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.