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HIGH

CVE-2020-28909

CVSS v3

8.8

HIGH

EPSS Score

5.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Incorrect File Permissions in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to root via modification of scripts. Low-privileges users are able to modify files that can be executed by sudo.

Technical details

Published
2021-05-24

Frequently asked questions

What is CVE-2020-28909?

Incorrect File Permissions in Nagios Fusion 4.1.8 and earlier allows for Privilege Escalation to root via modification of scripts. Low-privileges users are able to modify files that can be executed by sudo.

Is CVE-2020-28909 actively exploited?

Active exploitation of CVE-2020-28909 has not been confirmed. Its EPSS score was 5.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-28909?

CVE-2020-28909 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2020-28909 affecting your environment?

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