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CRITICAL

CVE-2021-3325

CVSS v3

9.8

CRITICAL

EPSS Score

2.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2021-3325 Red Hat Product Security

    monitorix: Basic Authentication bypass in a default installatio

Full record on NVD

Description

Monitorix 3.13.0 allows remote attackers to bypass Basic Authentication in a default installation (i.e., an installation without a hosts_deny option). This issue occurred because a new access-control feature was introduced without considering that some exiting installations became unsafe, upon an update to 3.13.0, unless the new feature was immediately configured.

Technical details

Published
2021-01-27

Frequently asked questions

What is CVE-2021-3325?

Monitorix 3.13.0 allows remote attackers to bypass Basic Authentication in a default installation (i.e., an installation without a hosts_deny option). This issue occurred because a new access-control feature was introduced without considering that some exiting installations became unsafe, upon an update to 3.13.0, unless the new feature was immediately configured.

Is CVE-2021-3325 actively exploited?

Active exploitation of CVE-2021-3325 has not been confirmed. Its EPSS score was 2.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-3325?

CVE-2021-3325 has a CVSS v3 base score of 9.8 (CRITICAL severity).

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