Vulnerability Details : CVE-2020-26240

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
Published 2020-11-25 02:15:11
Updated 2020-12-03 15:16:14
Source GitHub, Inc.
View at NVD,   CVE.org

Products affected by CVE-2020-26240

Exploit prediction scoring system (EPSS) score for CVE-2020-26240

EPSS FAQ
0.12%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-26240

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:P/A:N
10.0
2.9
 NIST
7.5
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
3.9
3.6
 NIST
5.3
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
1.6
3.6
 GitHub, Inc.

CWE ids for CVE-2020-26240

  • The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.
    Assigned by:
    • nvd@nist.gov (Primary)
    • security-advisories@github.com (Secondary)

References for CVE-2020-26240

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