Deserialization of untrusted data in SolarWinds Orion Virtual Infrastructure Monitor
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SolarWinds | Orion Virtual Infrastructure Monitor | 2020.2 | — | No fix listed | CNA |
- Orion Virtual Infrastructure Monitor VendorSolarWinds Affected 2020.2 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:solarwinds:orion_platform:2020.2:*:*:*:*:*:*:* | 2020.2 | Vulnerable | SolarWinds |
- cpe:2.3:a:solarwinds:orion_platform:2020.2:*:*:*:*:*:*:* Versions 2020.2 Vulnerable ·SolarWinds
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27277
- 2026-10-03 Alias added: GHSA-jv8c-r873-24qg
References
More SolarWinds Orion Platform vulnerabilities
- TI-2020-08199 Authentication bypass in SolarWinds Orion Platform KEVCVSS 3.1CRITICAL 9.8
- TI-2022-17164 SolarWinds Platform Deserialization of Untrusted Data CVSS 3.1HIGH 8.8
- TI-2022-17166 Orion Platform SQL Injection Privilege Escalation Vulnerability CVSS 3.1HIGH 8.8
- TI-2021-14112 Chart Endpoint Deserialization of Untrusted Data Remote Code Execution Vulnerability CVSS 3.1HIGH 8.9
- TI-2021-14109 ActionPluginBaseView Deserialization of Untrusted Data RCE CVSS 3.1HIGH 8.9
- TI-2022-17818 SolarWinds Platform Deserialization of Untrusted Data Vulnerability CVSS 3.1HIGH 7.2
Sources
- CVE-2021-27277 · CVE Program
- CVE-2021-27277 · NVD
- FIRST EPSS
- GHSA-jv8c-r873-24qg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences