Vulnerability Details CVE-2020-24837
An integer underflow has been found in the latest version of ZCFees. The variables 'currPeriodIdx' and 'lastPeriodExecIdx' are both unsigned integers, and the result of the minus operation may be a negative integer which leads to an underflow. The attackers can modify the current timestamp of the transaction somehow and block the execution of the process function.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.005
EPSS Ranking 64.4%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2020-24837
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cpe:2.3:a:zcfees_project:zcfees:-