CVE-2020-29577

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-08 · updated 2026-06-17

Description

The official znc docker images before 1.7.1-slim contain a blank password for a root user. Systems using the znc docker container deployed by affected versions of the Docker image may allow an remote attacker to achieve root access with a blank password.

Affected products

Znc Docker Image: 1.6, 1.6-slim, 1.6.4, 1.6.4-slim, 1.6.5, 1.6.5-slim (+5)

References

https://github.com/koharin/koharin2/blob/main/CVE-2020-29577
https://github.com/koharin/koharin2/blob/main/CVE-2020-29577

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