High severity · published Sep 8, 2021
CVE-2021-35217
Insecure Deseralization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module and reported to us by ZDI
8.8
CVSS
72.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)72.8% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PM
Patch Manager · Solarwinds
through 2020.2.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35217
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35217
Vendor Advisory
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
Release Notes
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/orion_platform_2020-2-6_release_notes.htm
Vendor Advisory
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35217
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1247/
More from Patch Manager
8.8
CVE-2021-35216
Insecure Deserialization of untrusted data remote code execution vulnerability was discovered in Patch Manager Orion Platform Integration module
7.8
CVE-2021-27240
This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Patch Manager 2020.2.1
4.4
CVE-2026-28331
SolarWinds Patch Manager Sensitive Information Exposure Vulnerability