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CVE-2021-25298: Nagios XI OS Command Injection

criticalknown exploitedpublic exploitCVE-2021-25298
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Nagios XI contains a vulnerability which can lead to OS command injection on the Nagios XI server.

CSIRTS triage

vendor: Nagiosproduct: Nagios XICode injection
What
Nagios XI contains a vulnerability which can lead to OS command injection.
Who is affected
Users of Nagios XI are affected.
Urgency
Immediate action is required due to active exploitation and critical severity.
Action
Patch Nagios XI to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-01-18
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-25298

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-25298coverage & exploitation statusNVD · CVE.org

Recent advisories for Nagios XI OS

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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