CVE-2020-26800

5.5 mediumEPSS 1.2%

Medium (5.5) in ethereum aleth. EPSS 1.2% chance of exploitation in the next 30 days.

A stack overflow vulnerability in Aleth Ethereum C++ client version <= 1.8.0 using a specially crafted a config.json file may result in a denial of service.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2021-01-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

ethereum:aleth

References

https://ethereum.org/en/about/
https://github.com/ethereum/aleth
https://github.com/ethereum/aleth/issues/5917
https://ethereum.org/en/about/
https://github.com/ethereum/aleth

Check your stack JSON