CVE-2021-25836
CVSS v3
7.5
HIGH
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Cosmos Network Ethermint <= v0.4.0 is affected by cache lifecycle inconsistency in the EVM module. The bytecode set in a FAILED transaction wrongfully remains in memory(stateObject.code) and is further written to persistent store at the Endblock stage, which may be utilized to build honeypot contracts.
Technical details
- Published
- 2021-02-08
Frequently asked questions
What is CVE-2021-25836?
Cosmos Network Ethermint <= v0.4.0 is affected by cache lifecycle inconsistency in the EVM module. The bytecode set in a FAILED transaction wrongfully remains in memory(stateObject.code) and is further written to persistent store at the Endblock stage, which may be utilized to build honeypot contracts.
Is CVE-2021-25836 actively exploited?
Active exploitation of CVE-2021-25836 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2021-25836?
CVE-2021-25836 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2021-25836 affecting your environment?
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