CVE-2021-27277

This vulnerability allows local attackers to escalate privileges on affected installations of SolarWinds Orion Virtual Infrastructure Monitor 2020.2. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the OneTimeJobSchedulerEventsService WCF service. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-11955.

• CWE-502

• https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#FixedRelease Notes, Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-373/Third Party Advisory, VDB Entry
• https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#FixedRelease Notes, Vendor Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-21-373/Third Party Advisory, VDB Entry

Published

Apr 22, 2021

Last Modified

Jun 17, 2026

Status

Modified

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