CVE-2021-25835

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Cosmos Network Ethermint <= v0.4.0 is affected by a cross-chain transaction replay vulnerability in the EVM module. Since ethermint uses the same chainIDEpoch and signature schemes with ethereum for compatibility, a verified signature in ethereum is still valid in ethermint with the same msg content and chainIDEpoch, which enables "cross-chain transaction replay" attack.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-294

Affected software

No affected versions have been published.

Timeline

Published: Feb 8, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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