CVE-2020-8807

MEDIUM 5.3CVE-2020-8807 · Published 05/02/2021 · updated 17/06/2026

In short

CVE-2020-8807 is a MEDIUM (CVSS 5.3) vulnerability affecting zcashd (electriccoin).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 64.5% of all vulnerabilities.
Fix: update to 2.1.1 or later.

Package	Affected versions	Patched versions
zcashd electriccoin	`< 2.1.1`	`2.1.1`

Description

In Electric Coin Company Zcashd before 2.1.1-1, the time offset between messages could be leveraged to obtain sensitive information about the relationship between a suspected victim's address and an IP address, aka a timing side channel.

References

electriccoin.co/blog/new-releases-2-1-1-and-hotfix-2-1-1-1 · Release Notes

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