Skip to main content
HIGH

CVE-2020-6581

CVSS v3

7.3

HIGH

EPSS Score

1.6 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Nagios NRPE 3.2.1 has Insufficient Filtering because, for example, nasty_metachars interprets \\n as the character \\ and the character n (not as the \\n newline sequence). This can cause command injection.

Technical details

Published
2020-03-16

Frequently asked questions

What is CVE-2020-6581?

Nagios NRPE 3.2.1 has Insufficient Filtering because, for example, nasty_metachars interprets \\n as the character \\ and the character n (not as the \\n newline sequence). This can cause command injection.

Is CVE-2020-6581 actively exploited?

Active exploitation of CVE-2020-6581 has not been confirmed. Its EPSS score was 1.6% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-6581?

CVE-2020-6581 has a CVSS v3 base score of 7.3 (HIGH severity).

Is CVE-2020-6581 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

No credit card required · 500 free checks/month · Free API key