{"id":"CVE-2020-9331","aliases":["EUVD-2020-30152","GHSA-78q2-p2ph-jmx6"],"status":"published","title":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local...","description":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local users with the SeChangeNotifyPrivilege right) because user-mode input is mishandled during process creation. An attacker can write arbitrary data to an arbitrary location in the kernel's address space.","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":"2026-11-08","score":0.00415,"percentile":0.36055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2020-10-23T04:49:06Z","modified":"2026-06-17T03:27:46Z","products":[{"vendor":"cryptopro","product":"csp"}],"references":[{"url":"https://www.youtube.com/watch?v=b5vPDmMtzwQ","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-9331"},{"url":"https://github.com/advisories/GHSA-78q2-p2ph-jmx6"}],"sources":{"cve":[{"id":"CVE-2020-9331","description":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local users with the SeChangeNotifyPrivilege right) because user-mode input is mishandled during process creation. An attacker can write arbitrary data to an arbitrary location in the kernel's address space.","status":"published","published":"2020-10-23T04:49:06Z","modified":"2024-08-04T10:26:16.062Z","updated_at":"2026-11-02T14:35:49.538427Z"}],"euvd":[{"id":"EUVD-2020-30152","description":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local users with the SeChangeNotifyPrivilege right) because user-mode input is mishandled during process creation. An attacker can write arbitrary data to an arbitrary location in the kernel's address space.","status":"published","published":"2020-10-23T04:49:06Z","modified":"2024-08-04T10:26:16Z","updated_at":"2026-11-03T03:07:54.599277Z"}],"ghsa":[{"id":"GHSA-78q2-p2ph-jmx6","title":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local...","description":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local users with the SeChangeNotifyPrivilege right) because user-mode input is mishandled during process creation. An attacker can write arbitrary data to an arbitrary location in the kernel's address space.","status":"published","published":"2022-05-24T17:32:02Z","modified":"2023-01-29T05:04:28Z","cwes":["CWE-269"],"updated_at":"2026-11-02T14:45:33.67375Z"}],"nvd":[{"id":"CVE-2020-9331","description":"CryptoPro CSP through 5.0.0.10004 on 32-bit platforms allows Local Privilege Escalation (by local users with the SeChangeNotifyPrivilege right) because user-mode input is mishandled during process creation. An attacker can write arbitrary data to an arbitrary location in the kernel's address space.","status":"published","published":"2020-10-23T05:15:13.703Z","modified":"2026-06-17T03:27:46.123Z","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":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:20.704992Z"}]}}