HOMEVULNERABILITIESCVE-2021-25296
HIGHCISA KEVIN THE WILD

CVE-2021-25296

Published: January 18, 2022

EPSS:93.56%probability of exploitation in 30 daysPercentile:99.8th

Official Description

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

NVD Source

CISA KEV Advisory

Nagios XI OS Command Injection

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

Added to KEV: 2022-01-18Federal patch deadline: 2022-02-01
Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

Nagios XI contains a vulnerability that can lead to OS command injection on the Nagios XI server. With an EPSS score of 0.93557 and inclusion in CISA's KEV, this vulnerability is highly likely to be exploited and is actively targeted.

This vulnerability has been observed under active exploitation in the wild. The flaw is remotely exploitable, allowing OS command injection.

Recommended Action

Apply the latest security patches and updates for Nagios XI. Implement strong input validation and sanitize all user-supplied data.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-25296 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-25296 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild
External links open in a new tab. Always verify in a controlled environment before use.

All References (1)

Quick Facts

CVE IDCVE-2021-25296
SeverityHIGH
CISA KEVYES — Active Exploitation
ExploitIN THE WILD
EPSS (30d)93.56%
PublishedJan 18, 2022

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2021-25296 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
  • !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
  • !Active exploitation confirmed — treat as P1
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.