CVE-2021-3277

—

CVSS 3.1

7.2 high

EPSS

55%p99

Published

Jun 7, 2021 (Jun 7, 2021)

Modified

Jun 17, 2026

Description

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.

Vendors: nagios
Products: nagios xi
Weakness: CWE-434
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (54.6%)

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