CVE-2021-25836

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-02-08 · updated 2026-06-17

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.

Affected products

ChainSafe Ethermint: through 0.4.0

References

https://github.com/cosmos/ethermint/issues/667#issuecomment-759284303
https://github.com/cosmos/ethermint/issues/667#issuecomment-759284303

Get alerted when CVE-2021-25836 or the next vulnerability affects your stack