CVE-2021-27277
highpriority · track · 31EPSS 0.011 · 65 %ileEUUSEPSS · scored 2026-10-26
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixedcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-27277cnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-373/cnnvd
- https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#Fixedenisa_euvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-373/enisa_euvd
- https://documentation.solarwinds.com/en/Success_Center/SAM/Content/Release_Notes/SAM_2020-2-5_release_notes.htm#FixedRelease NotesVendor Advisorynvd
- https://www.zerodayinitiative.com/advisories/ZDI-21-373/Third Party AdvisoryVDB Entrynvd
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