CVE-2021-42219
CVSS v3
7.5
HIGH
EPSS Score
1.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.
Technical details
- Published
- 2022-03-17
Frequently asked questions
What is CVE-2021-42219?
Go-Ethereum v1.10.9 was discovered to contain an issue which allows attackers to cause a denial of service (DoS) via sending an excessive amount of messages to a node. This is caused by missing memory in the component /ethash/algorithm.go.
Is CVE-2021-42219 actively exploited?
Active exploitation of CVE-2021-42219 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-42219?
CVE-2021-42219 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-42219 affecting your environment?
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