CVE-2021-25298CISA KEVEPSS p99.5%

CVE-2021-25298Nagios XI OS Command Injection

Nagios / Nagios XI

Description

Nagios XI contains a vulnerability which can lead to OS command injection on the Nagios XI server.

Scoring

CVSS 8.8 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS74.98% probability of exploitation · percentile 99.5% · 2026-08-01T12:00:31Z
Last modified2026-07-09

CISA KEV entry

Added to KEV: 2022-01-18

(incoming)1

TypeTargetConfidenceTier
KEVEntryNagios XI OS Command Injectionkev-cve-2021-252980%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2025-34284
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Nagios XI Remote Code Execution Vulnerability
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Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.