{"id":"CVE-2021-26098","aliases":["EUVD-2021-12919","GHSA-6g87-jg5m-ppfq"],"status":"published","title":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow...","description":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow an attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:X/RC:X","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00814,"percentile":0.57355,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-330"],"published":"2021-08-04T13:20:48Z","modified":"2026-06-17T03:42:51Z","products":[{"vendor":"fortinet","product":"fortinet fortisandbox"},{"vendor":"fortinet","product":"fortisandbox"}],"references":[{"url":"https://fortiguard.com/advisory/FG-IR-20-218","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26098"},{"url":"https://github.com/advisories/GHSA-6g87-jg5m-ppfq"}],"sources":{"cve":[{"id":"CVE-2021-26098","description":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow an attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.","status":"published","published":"2021-08-04T13:20:48Z","modified":"2024-10-25T13:54:27.314Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:X/RC:X","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:57.033395Z"}],"euvd":[{"id":"EUVD-2021-12919","description":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow an attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.","status":"published","published":"2021-08-04T13:20:48Z","modified":"2024-10-25T13:54:27Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:X/RC:X","level":"medium"}],"updated_at":"2026-11-03T00:05:19.027476Z"}],"ghsa":[{"id":"GHSA-6g87-jg5m-ppfq","title":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow...","description":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow an attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.","status":"published","published":"2022-05-24T19:10:01Z","modified":"2023-01-30T05:01:14Z","cwes":["CWE-330"],"updated_at":"2026-11-02T14:46:22.009402Z"}],"nvd":[{"id":"CVE-2021-26098","description":"An instance of small space of random values in the RPC API of FortiSandbox before 4.0.0 may allow an attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.","status":"published","published":"2021-08-04T14:15:08.103Z","modified":"2026-06-17T03:42:51.47Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-330"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}