CVE-2023-40591

high

Description

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node, can be made to consume unbounded amounts of memory when handling specially crafted p2p messages sent from an attacker node. The fix is included in geth version `1.12.1-stable`, i.e, `1.12.2-unstable` and onwards. Users are advised to upgrade. There are no known workarounds for this vulnerability.

References

https://github.com/ethereum/go-ethereum/security/advisories/GHSA-ppjg-v974-84cm

https://github.com/ethereum/go-ethereum/releases/tag/v1.12.1

https://geth.ethereum.org/docs/developers/geth-developer/disclosures

Details

Source: Mitre, NVD

Published: 2023-09-06

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.0056