{"id":"CVE-2021-40343","aliases":["EUVD-2021-27522","GHSA-hcch-vhxj-299j"],"status":"published","title":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py...","description":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00654,"percentile":0.51601,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2021-10-26T10:51:53Z","modified":"2026-06-17T04:06:45Z","products":[{"vendor":"nagios","product":"nagios_xi"}],"references":[{"url":"https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://synacktiv.com","tags":["x_refsource_MISC","x_transferred","Not Applicable"]},{"url":"https://www.synacktiv.com/sites/default/files/2021-10/Nagios_XI_multiple_vulnerabilities_0.pdf","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-40343"},{"url":"https://github.com/advisories/GHSA-hcch-vhxj-299j"}],"sources":{"cve":[{"id":"CVE-2021-40343","description":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.","status":"published","published":"2021-10-26T10:51:53Z","modified":"2024-08-04T02:27:31.983Z","updated_at":"2026-11-02T14:33:01.495293Z"}],"euvd":[{"id":"EUVD-2021-27522","description":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.","status":"published","published":"2021-10-26T10:51:53Z","modified":"2024-08-04T02:27:31Z","updated_at":"2026-11-03T03:24:20.862157Z"}],"ghsa":[{"id":"GHSA-hcch-vhxj-299j","title":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py...","description":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.","status":"published","published":"2022-05-24T19:18:51Z","modified":"2023-01-30T05:03:13Z","cwes":["CWE-732"],"updated_at":"2026-11-02T14:46:47.501364Z"}],"nvd":[{"id":"CVE-2021-40343","description":"An issue was discovered in Nagios XI 5.8.5. Insecure file permissions on the nagios_unbundler.py file allow the nagios user to elevate their privileges to the root user.","status":"published","published":"2021-10-26T11:15:07.667Z","modified":"2026-06-17T04:06:45.84Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:07:00.549994Z"}]}}