CVE-2021-27277
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I. Basic Information for CVE-2021-27277
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
Solarwinds Orion Virtual Infrastructure Monitor 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Solarwinds Orion Virtual Infrastructure Monitor是美国Solarwinds公司的一个应用软件。用于从Orion Web控制台启用虚拟监视。 SolarWinds Orion Virtual Infrastructure Monitor 存在代码问题漏洞，攻击者可利用该漏洞升级特权并在上下文中执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| SolarWinds | Orion Virtual Infrastructure Monitor | 2020.2 | - |
II. Public POCs for CVE-2021-27277
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.zerodayinitiative.com/advisories/ZDI-21-373/x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-27277
IV. Related Vulnerabilities
Same vendor: SolarWinds
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SolarWinds Observability Self-Hosted Stored Cross-Site Scrip - CVE-2026-28297
SolarWinds Observability Self-Hosted Stored Cross-Site Scrip - CVE-2025-40541
SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Re - CVE-2025-40540
SolarWinds Serv-U Type Confusion Remote Code Execution Vulne - CVE-2025-40539
SolarWinds Serv-U Type Confusion Remote Code Execution Vulne
Same weakness: CWE-502
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Insecure deserialization - CVE-2026-5127
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ObjectInputStream.readObject() without ObjectInputFilter in - CVE-2026-34084
PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFac - CVE-2026-7712
MindsDB Pickle pickle.loads deserialization
V. Comments for CVE-2021-27277
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