{"id":"CVE-2021-35217","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-35217","generatedAt":"2026-11-05T01:11:07.800Z","title":"Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI.","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.","published":"2021-09-08T14:15:12.000Z","lastModified":"2026-06-17T03:57:19.000Z","status":"Modified","sourceIdentifier":"psirt@solarwinds.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-502"],"affected":["solarwinds/patch manager"],"epss":{"score":0.72792,"percentile":0.9945,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 72.8%, higher than 99% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm","tags":["Vendor Advisory"],"source":"psirt@solarwinds.com"},{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htm","tags":["Release Notes","Vendor Advisory"],"source":"psirt@solarwinds.com"},{"url":"https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217","tags":["Vendor Advisory"],"source":"psirt@solarwinds.com"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1247/","tags":["Third Party Advisory","VDB Entry"],"source":"psirt@solarwinds.com"},{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htm","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-1247/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-35217","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}