Malicious VSX Extension "SleepyDuck" Uses Ethereum to Keep Its Command Server Alive

Cybersecurity researchers have flagged a new malicious extension in the Open VSX registry that harbors a remote access trojan called SleepyDuck. According to Secure Annex's John Tuckner, the extension in question, juan-bianco.solidity-vlang version 0.0.7, was first published on October 31, 2025, ...

EUVD-2022-50308

Malicious code in bioql PyPI...

Compilation Error: Undefined function 'shiftl_toFix' in CTokenFiatCollateral Contract

Lines of code Vulnerability details Impact return shiftltoFixrate, shiftLeft; It should be noted that the function "shiftltoFix" is not defined in the contract and not imported from any library, this means that the compiler will throw an error when trying to deploy the contract and this function...

CVE-2022-47547

GossipSub 1.1, as used for Ethereum 2.0, allows a peer to maintain a positive score and thus not be pruned from the network even though it continuously misbehaves by never forwarding topic messages...

Incorrect behavior in CrossChainExecutorPolygon contract

Lines of code Vulnerability details Description: We have discovered an issue with the CrossChainExecutorPolygon contract. When a message with a nonce that has already been executed is received, the contract does not prevent the message from being processed or display an error message. This issue...

Proof-Of-Stake 安全漏洞

Proof-Of-Stake is a consensus mechanism used by the Ethereum Foundation's blockchain network to achieve distributed consensus. Proof-of-Stake PoS Ethereum consensus has a security vulnerability, the exploitation of which can lead to denial-of-service attacks...

OpenSea ‘Free Gift’ NFTs Drain Cryptowallet Balances

Users of OpenSea, the world’s largest digital-collectible marketplace, have found their cryptocurrency wallets ripped off thanks to cyberattackers weaponizing security bugs that allowed them to highjack user accounts. The attacks revolved around boobytrapped art files, which circulated in the for...

Lack of chain information in the signed data leads to potential replay attacks.

Handle shw Vulnerability details Impact The Offer structure, whose hash is signed by a maker, does not contain information of the current chain. Therefore, the signature is valid on all EVM-compatible chains. In the situation of a future hard fork of the Ethereum network, the valid signatures on...