THREATPORT/VULNERABILITY/CVE-2021-3193
CRITICAL SEVERITY

CVE-2021-3193

Nagios Xi vulnerability

CVSS
9.8
EPSS
9.8%
EPSS pct
95th
Exploited
No known
Improper access and command validation in the Nagios Docker Config Wizard before 1.1.2, as used in Nagios XI through 5.7, allows an unauthenticated attacker to execute remote code as the apache user.
Affected vendor
Nagios
Affected product
Nagios Xi
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2021-01-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 9.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2021-3193

  • Confirm whether Nagios Nagios Xi is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2021-3193.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-3193

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2021-3193 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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Are you exposed to CVE-2021-3193?

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