{"id":"CVE-2021-35217","aliases":["EUVD-2021-21860","GHSA-mr2h-fcf6-jvx9"],"status":"published","title":"Insecure Deserialization of untrusted data causing Remote code execution vulnerability.","description":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.","severity":{"version":"3.1","score":8.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.72792,"percentile":0.99453,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-502"],"published":"2021-09-08T13:15:03Z","modified":"2026-06-17T03:57:19Z","products":[{"vendor":"solarwinds","product":"orion platform"},{"vendor":"solarwinds","product":"patch_manager"}],"references":[{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htm","tags":["x_refsource_MISC","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1247/","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35217"},{"url":"https://support.solarwinds.com/SuccessCenter/s/article/Patch-Manager-2020-2-6-Hotfix-1-Release-Notes?language=en_US"},{"url":"https://github.com/advisories/GHSA-mr2h-fcf6-jvx9"}],"sources":{"cve":[{"id":"CVE-2021-35217","title":"Insecure Deserialization of untrusted data causing Remote code execution vulnerability.","description":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.","status":"published","published":"2021-09-08T13:15:03.615Z","modified":"2024-09-16T20:58:13.615Z","cvss":[{"version":"3.1","score":8.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21860","description":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.","status":"published","published":"2021-09-08T13:15:03Z","modified":"2024-09-16T20:58:13Z","cvss":[{"version":"3.1","score":8.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L","level":"high"}],"updated_at":"2026-11-03T00:55:09.505787Z"}],"ghsa":[{"id":"GHSA-mr2h-fcf6-jvx9","title":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in...","description":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.","status":"published","published":"2022-05-24T19:13:40Z","modified":"2023-01-30T05:01:57Z","cwes":["CWE-502"],"updated_at":"2026-11-02T14:46:31.662536Z"}],"nvd":[{"id":"CVE-2021-35217","description":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI. An Authenticated Attacker could exploit it by executing WSAsyncExecuteTasks deserialization of untrusted data.","status":"published","published":"2021-09-08T14:15:12.117Z","modified":"2026-06-17T03:57:19.21Z","cvss":[{"version":"3.1","score":8.9,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:58.05696Z"}]}}