# Vulnerability in EVM? **URL:** \ **Category:** General Commons\ **Created:** [August 30, 2021, 3:10am UTC](https://forum.sovryn.com/t/vulnerability-in-evm/1626 "2021-08-30T03:10:09Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![one\_digit](https://avatars.discourse-cdn.com/v4/letter/o/898d66/32.png) [@one\_digit](https://forum.sovryn.com/u/one_digit)\ **Post date:** [August 30, 2021, 3:10am UTC](https://forum.sovryn.com/t/vulnerability-in-evm/1626/1 "2021-08-30T03:10:09Z")
I saw this article about a bug in an older version of an Ethereum client: > **[Bug impacting over 50% of Ethereum clients leads to fork](https://www.theblockcrypto.com/post/115822/bug-impacting-over-50-of-ethereum-clients-leads-to-fork)** > > A bug in older versions of an Ethereum network client has split those nodes off from the rest of the network. The article says “The bug…has the potential to impact other EVM-compatible chains.” I’m wondering if RSK could be vulnerable to this problem because of its similarity to the EVM. ---
**Author:** ![Ororo](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.sovryn.com/ororo/32/352_2.png) [@Ororo](https://forum.sovryn.com/u/Ororo)\ **Post date:** [August 30, 2021, 4:30pm UTC](https://forum.sovryn.com/t/vulnerability-in-evm/1626/2 "2021-08-30T16:30:38Z")
Thanks for sharing! This is a bug in an older version of Geth and RSK comes from Ethereumj, another implementation. So, according to the RSK core team, RSK is not affected. ---
**Author:** ![exiledsurfer](https://dub1.discourse-cdn.com/flex017/user_avatar/forum.sovryn.com/exiledsurfer/32/260_2.png) [@exiledsurfer](https://forum.sovryn.com/u/exiledsurfer)\ **Post date:** [August 30, 2021, 5:50pm UTC](https://forum.sovryn.com/t/vulnerability-in-evm/1626/3 "2021-08-30T17:50:06Z")