Deserialization of Untrusted Data in SolarWinds Orion Virtual Infrastructure Monitor

Published: 2021-03-31
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-27277
Exploitation vector Local
Public exploit N/A
Vulnerable software
Orion Virtual Infrastructure Monitor
Other software / Other software solutions

Vendor SolarWinds

Security Advisory

This security advisory describes one low risk vulnerability.

1) Deserialization of Untrusted Data

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-27277

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No


The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insecure input validation when processing serialized data in the OneTimeJobSchedulerEventsService WCF service. A local user can pass specially crafted data to the application and execute arbitrary code on the target system with elevated privileges.


Install updates from vendor's website.

Vulnerable software versions

Orion Virtual Infrastructure Monitor: 2020.2.4

CPE External links

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.