{"id":"CVE-2021-32593","aliases":["EUVD-2021-19433","GHSA-r38h-c57m-fw47"],"status":"published","title":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel...","description":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00572,"percentile":0.4761,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-327"],"published":"2022-04-06T09:15:31Z","modified":"2026-06-17T03:53:14Z","products":[{"vendor":"fortinet","product":"fortinet fortiwan"},{"vendor":"fortinet","product":"fortiwan"}],"references":[{"url":"https://fortiguard.com/psirt/FG-IR-21-070","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-32593"},{"url":"https://github.com/advisories/GHSA-r38h-c57m-fw47"}],"sources":{"cve":[{"id":"CVE-2021-32593","description":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.","status":"published","published":"2022-04-06T09:15:31Z","modified":"2024-10-25T13:33:43.236Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:33:07.349244Z"}],"euvd":[{"id":"EUVD-2021-19433","description":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.","status":"published","published":"2022-04-06T09:15:31Z","modified":"2024-10-25T13:33:43Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C","level":"medium"}],"updated_at":"2026-11-03T00:05:19.50919Z"}],"ghsa":[{"id":"GHSA-r38h-c57m-fw47","title":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel...","description":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.","status":"published","published":"2022-04-07T00:00:20Z","modified":"2023-01-27T05:01:22Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:41:52.644766Z"}],"nvd":[{"id":"CVE-2021-32593","description":"A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.","status":"published","published":"2022-04-06T10:15:07.983Z","modified":"2026-06-17T03:53:14.173Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-327"],"updated_at":"2026-11-02T14:07:05.581807Z"}]}}