CVE-2021-35217
Insecure Deserialization of untrusted data causing Remote code execution vulnerability.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Insecure Deserialization of untrusted data causing Remote code execution vulnerability.
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.
- Record
CVE-2021-35217- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L - Updated
- 2026-11-02
EUVDEUVD-2021-21860
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.
- Record
EUVD-2021-21860- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mr2h-fcf6-jvx9 No score
Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in...
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.
- Record
GHSA-mr2h-fcf6-jvx9- Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-35217- CVSS 3.1
- 8.9 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-35217 is a high vulnerability (CVSS 8.9) in Solarwinds Orion Platform, published September 8, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 72.8%, the 99th percentile. No source names a fixed version.
References
documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
solarwinds.com/trust-center/security-advisories/cve-2021-35217
zerodayinitiative.com/advisories/ZDI-21-1247
nvd.nist.gov/vuln/detail/CVE-2021-35217
support.solarwinds.com/SuccessCenter/s/article/Patch-Manager-2020-2-6-Hotfix-1-Release-Notes?language=en_US
github.com/advisories/GHSA-mr2h-fcf6-jvx9