Security analysis tool for EVM bytecode. Supports smart contracts built for Ethereum, Hedera, Quorum, Vechain, Roostock, Tron and other EVM-compatible blockchains.
"head": "The contract executes an external message call.",
"tail": "An external function call to a fixed contract address is executed. Make sure that the callee contract has been reviewed carefully."
},
"extra": {
},
"locations": [
{
"sourceMap": "858:1:0"
}
],
"severity": "Low",
"swcID": "SWC-107",
"swcTitle": "Reentrancy"
},
{
"description": {
"head": "A call to a user-supplied address is executed.",
"tail": "The callee address of an external message call can be set by the caller. Note that the callee can contain arbitrary code and may re-enter any function in this contract. Review the business logic carefully to prevent averse effects on the contract state."
},
"extra": {
},
"locations": [
{
"sourceMap": "912:1:0"
}
],
"severity": "Medium",
"swcID": "SWC-107",
"swcTitle": "Reentrancy"
},
{
"description": {
"head": "The return value of a message call is not checked.",
"tail": "External calls return a boolean value. If the callee contract halts with an exception, 'false' is returned and execution continues in the caller. It is usually recommended to wrap external calls into a require statement to prevent unexpected states."
},
"extra": {
},
"locations": [
{
"sourceMap": "661:1:0"
}
],
"severity": "Low",
"swcID": "SWC-104",
"swcTitle": "Unchecked Call Return Value"
},
{
"description": {
"head": "The return value of a message call is not checked.",
"tail": "External calls return a boolean value. If the callee contract halts with an exception, 'false' is returned and execution continues in the caller. It is usually recommended to wrap external calls into a require statement to prevent unexpected states."
},
"extra": {
},
"locations": [
{
"sourceMap": "779:1:0"
}
],
"severity": "Low",
"swcID": "SWC-104",
"swcTitle": "Unchecked Call Return Value"
},
{
"description": {
"head": "The return value of a message call is not checked.",
"tail": "External calls return a boolean value. If the callee contract halts with an exception, 'false' is returned and execution continues in the caller. It is usually recommended to wrap external calls into a require statement to prevent unexpected states."
},
"extra": {
},
"locations": [
{
"sourceMap": "858:1:0"
}
],
"severity": "Low",
"swcID": "SWC-104",
"swcTitle": "Unchecked Call Return Value"
},
{
"description": {
"head": "The return value of a message call is not checked.",
"tail": "External calls return a boolean value. If the callee contract halts with an exception, 'false' is returned and execution continues in the caller. It is usually recommended to wrap external calls into a require statement to prevent unexpected states."