{"id":"CVE-2021-35246","aliases":["EUVD-2021-21889","GHSA-855x-qr5w-6pwv"],"status":"published","title":"Unprotected Transport of Credentials (HSTS) Vulnerability","description":"The application fails to prevent users from connecting to it over unencrypted connections. An attacker able to modify a legitimate user's network traffic could bypass the application's use of SSL/TLS encryption and use the application as a platform for attacks against its users.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00365,"percentile":0.30619,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-319","CWE-838"],"published":"2022-11-23T16:48:18Z","modified":"2026-06-17T03:57:22Z","products":[{"vendor":"solarwinds","product":"engineer's toolset"},{"vendor":"solarwinds","product":"engineer\\'s_toolset"}],"references":[{"url":"https://www.solarwinds.com/trust-center/security-advisories/CVE-2021-35246","tags":["x_transferred","Patch","Vendor Advisory"]},{"url":"https://documentation.solarwinds.com/en/success_center/ets/content/release_notes/ets_2022-4_release_notes.htm","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-35246","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35246"},{"url":"https://github.com/advisories/GHSA-855x-qr5w-6pwv"}],"sources":{"cve":[{"id":"CVE-2021-35246","title":"Unprotected Transport of Credentials (HSTS) Vulnerability","description":"The application fails to prevent users from connecting to it over unencrypted connections. An attacker able to modify a legitimate user's network traffic could bypass the application's use of SSL/TLS encryption and use the application as a platform for attacks against its users.","status":"published","published":"2022-11-23T16:48:18.061Z","modified":"2025-04-25T18:18:44.414Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21889","description":"The application fails to prevent users from connecting to it over unencrypted connections. An attacker able to modify a legitimate user's network traffic could bypass the application's use of SSL/TLS encryption and use the application as a platform for attacks against its users.","status":"published","published":"2022-11-23T16:48:18Z","modified":"2025-04-25T18:18:44Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:52:02.967137Z"}],"ghsa":[{"id":"GHSA-855x-qr5w-6pwv","title":"The application fails to prevent users from connecting to it over unencrypted connections. An...","description":"The application fails to prevent users from connecting to it over unencrypted connections. An attacker able to modify a legitimate user's network traffic could bypass the application's use of SSL/TLS encryption and use the application as a platform for attacks against its users.","status":"published","published":"2022-11-23T18:30:28Z","modified":"2023-07-07T21:30:16Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-319","CWE-838"],"updated_at":"2026-11-02T14:54:42.043841Z"}],"nvd":[{"id":"CVE-2021-35246","description":"The application fails to prevent users from connecting to it over unencrypted connections. An attacker able to modify a legitimate user's network traffic could bypass the application's use of SSL/TLS encryption and use the application as a platform for attacks against its users.","status":"published","published":"2022-11-23T17:15:09.943Z","modified":"2026-06-17T03:57:22.723Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-319"],"updated_at":"2026-11-02T14:07:06.906968Z"}]}}