CVE-2021-25837
mediumpriority · track · 41EPSS 0.015 · 75 %ileexploit · PoCEUUSEPSS · scored 2026-10-27
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".
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (1)
Public proof-of-concept and weaponised exploit code.
- iczc/Ethermint-CVE-2021-25837iczc/Ethermint-CVE-2021-25837PoC · poc_in_github
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://github.com/cosmos/ethermint/issues/667Patchcnnvd
- https://github.com/cosmos/ethermint/issues/667#issuecomment-759284107cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-25837cnnvd
- https://github.com/cosmos/ethermint/issues/667#issuecomment-759284107enisa_euvd
- https://github.com/cosmos/ethermint/issues/667#issuecomment-759284107ExploitThird Party Advisorynvd
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