CVE-2020-26240: medium-severity vulnerability in ethereum go-ethereum
Erroneous Proof of Work calculation in geth
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.9%
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Affected products
ethereum · go-ethereumRelated CVEs — ethereum go-ethereum
In the same product, most dangerous first.
CVE-2020-26264MEDIUMLES Server DoS via GetProofsV2EPSS 1.9%CVE-2020-26242MEDIUMDenial of service in gethEPSS 1.5%CVE-2021-39137MEDIUMConsensus flaw during block processing in go-ethereumEPSS 1.3%CVE-2021-41173MEDIUMDoS via maliciously crafted p2p messageEPSS 1.2%CVE-2020-26241MEDIUMShallow copy bug in gethEPSS 1.2%CVE-2022-29177MEDIUMDoS via malicious p2p message in Go-EthereumEPSS 1.2%