UpHeron
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Servers and applications

CVE-2021-3277

Nagios XI 5.7.5 and earlier allows authenticated admins to upload arbitrary files due to improper validation of the rename functionality in custom-includes component, which leads to remote code execution by uploading php files.

Severity
High 7.2
Published
7 Jun 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Nagios XIServers and applications · cpe:a:nagios:nagios_xi
  • Every version up to 5.7.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-3277
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-3277