What’s Vulnerable › Vulnerabilities

CVE-2021-25837

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% 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. Due to the inconsistency between the Storage caching cycle and the Tx processing cycle, Storage changes caused by a failed transaction are improperly reserved in memory. Although the bad storage cache data will be discarded at EndBlock, it is still valid in the current block, which enables many possible attacks such as an "arbitrary mint token".

Affected products

• ChainSafe Ethermint: through 0.4.0

References

• https://github.com/cosmos/ethermint/issues/667#issuecomment-759284107
• https://github.com/cosmos/ethermint/issues/667#issuecomment-759284107

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