Vulnerability in Ethereum Go-Ethereum
CVE-2020-26265
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.009 (58.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000
Affected products
- Ethereum Go-Ethereum — versions >= 1.9.4, < 1.9.20
- Ethereum Go
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ethereum/go-ethereum/security/advisories/GHSA-xw37-57qp-9mm4 (Third Party Advisory)
- github.com/ethereum/go-ethereum/releases/tag/v1.9.20 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-26265?
- CVE-2020-26265 is a medium-severity vulnerability in Ethereum Go-Ethereum, classified under Incorrect Calculation. CVSS score: 5.3/10. Published 2020-12-11.
- How severe is CVE-2020-26265?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-26265 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.