CVE-2020-26265: medium-severity vulnerability in ethereum go-ethereum
Consensus flaw during block processing
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.9%
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth from version 1.9.4 and before version 1.9.20 a consensus-vulnerability could cause a chain split, where vulnerable versions refuse to accept the canonical chain. The fix was included in the Paragade release version 1.9.20. No individual workaround patches have been made -- all users are recommended to upgrade to a newer version.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/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-2020-26240MEDIUMErroneous Proof of Work calculation in gethEPSS 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%