SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-6581

This can cause command injection.

HIGH 7.3EPSS 1.61%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
7.3 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS
1.61% probability · 76th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
nagios/remote plug in executor · fedoraproject/fedora
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 1.61%26 October 202626 October 2026

EPSS 1.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.