{"id":"CVE-2021-40345","aliases":["EUVD-2021-27524","GHSA-vj8f-j434-7c8h"],"status":"published","title":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an...","description":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.22691,"percentile":0.97738,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-77"],"published":"2021-10-26T00:00:00Z","modified":"2026-06-17T04:06:46Z","exploits":[{"source":"pocgithub","id":"ArianeBlow/NagiosXI-RCE-all-version-CVE-2021-40345","title":"ArianeBlow/NagiosXI-RCE-all-version-CVE-2021-40345","date":"2021-06-02","url":"https://github.com/ArianeBlow/NagiosXI-RCE-all-version-CVE-2021-40345"}],"products":[{"vendor":"nagios","product":"nagios_xi"}],"references":[{"url":"https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://synacktiv.com","tags":["x_transferred","Not Applicable"]},{"url":"https://github.com/ArianeBlow/NagiosXI-EmersonFI/blob/main/README.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdf","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40345"},{"url":"https://github.com/advisories/GHSA-vj8f-j434-7c8h"}],"sources":{"cve":[{"id":"CVE-2021-40345","description":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.","status":"published","published":"2021-10-26T00:00:00Z","modified":"2024-08-04T02:27:31.917Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27524","description":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.","status":"published","published":"2021-10-26T00:00:00Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:20.862157Z"}],"ghsa":[{"id":"GHSA-vj8f-j434-7c8h","title":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an...","description":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.","status":"published","published":"2022-05-24T19:18:50Z","modified":"2023-01-27T05:03:01Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:42:09.126228Z"}],"nvd":[{"id":"CVE-2021-40345","description":"An issue was discovered in Nagios XI 5.8.5. In the Manage Dashlets section of the Admin panel, an administrator can upload ZIP files. A command injection (within the name of the first file in the archive) allows an attacker to execute system commands.","status":"published","published":"2021-10-26T11:15:07.757Z","modified":"2026-06-17T04:06:46.08Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:07:00.549994Z"}]}}