Is CVE-2020-26240 in the CISA KEV catalog?

No. CVE-2020-26240 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-26240?

CVE-2020-26240 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2020-26240?

CVE-2020-26240 has an EPSS score of 1.64% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-26240?

Upgrade go ethereum to 1.9.24 or later.

CVE & CISA-KEV Catalog

CVE-2020-26240

MEDIUMEPSS 74th pctl

5.3

CVSS v3

NVD

Description

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

CWE-682

How to fix

Remediation Available

go ethereumNVD

Affected:< 1.9.24Fixed in:1.9.24CVE-2020-26240derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.64%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch2

Vendor Advisory1

blog.ethereum.org

Third-Party Advisory1

github.com

Embed a live status badge for CVE-2020-26240

Markdown

[![CVE-2020-26240](https://tridentstack.com/cve/badge/CVE-2020-26240.svg)](https://tridentstack.com/cve/CVE-2020-26240)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-26240"><img src="https://tridentstack.com/cve/badge/CVE-2020-26240.svg" alt="CVE-2020-26240"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.