A critical integer overflow vulnerability in Klever-Go allows authenticated users to bypass royalty validation logic, leading to the creation of unbacked assets and potential financial integrity loss.

This vulnerability is an integer overflow (CWE-190) occurring within the split-royalty calculation logic of the Klever-Go blockchain protocol. An authenticated attacker can provide crafted input values that wrap the validation sum to zero, successfully bypassing the check and allowing the generation of unbacked KLV or other assets during transactions.

The exploitation of this flaw poses a severe risk to the financial integrity of the blockchain ecosystem. By allowing the unauthorized creation of unbacked assets, attackers can effectively inflate supply or misappropriate value, leading to significant financial loss and a total erosion of trust in the platform. Given the high CVSS score of 9.6, this vulnerability requires immediate attention to prevent potential market manipulation.

Immediate Action: Update the Klever-Go implementation to version 1.7.19 or later to incorporate the corrected royalty validation logic.

Proactive Monitoring: Monitor blockchain transaction logs for anomalous asset creation events or unexpected spikes in royalty payout values that deviate from established protocol norms.

Compensating Controls: Implement stricter input validation at the gateway or proxy level if immediate patching is delayed, specifically targeting fields related to royalty percentages and split-royalty calculations.

Public Exploit Available: Unknown

This vulnerability represents a critical threat to the integrity of the Klever-Go protocol. Administrators should prioritize upgrading to version 1.7.19 immediately to remediate the integer overflow flaw and prevent the unauthorized creation of assets. Failure to update significantly increases the risk of financial exploitation by malicious actors.