CVE-2021-37347Known exploitationPublic exploit

Root privilege escalation via unsanitized directory name

Published Aug 13, 2021 · Updated Aug 4, 2024

Local privilege escalation in Nagios XI before 5.8.5 allows local users to gain root privileges through a crafted directory name. The privileged getprofile.sh script accepts its directory-name argument without validation, enabling path manipulation during profile generation. Low-privileged host access or code execution as the web-server user is required, after which commands execute as root.

CVSS severity7.8
High
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in Nagios XI before 5.8.5 allows local users to gain root privileges through a crafted directory name. The privileged getprofile.sh script accepts its directory-name argument without validation, enabling path manipulation during profile generation. Low-privileged host access or code execution as the web-server user is required, after which commands execute as root.

The record

CVE
CVE-2021-37347
Published
Aug 13, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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