Deserialization of untrusted data in SolarWinds Network Performance Monitor
Key facts
- Attack vector
- Network
- Privileges required
- None
- 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 remote attackers to execute arbitrary code on affected installations of SolarWinds Network Performance Monitor 2020.2.1. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SolarWinds.Serialization library. 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 execute code in the context of SYSTEM. Was ZDI-CAN-12213.
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 | Network Performance Monitor | 2020.2.1 | — | No fix listed | CNA |
- Network Performance Monitor VendorSolarWinds Affected 2020.2.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:solarwinds:network_performance_monitor:*:*:*:*:*:*:*:* | 2020.2.1 to before 2020.2.5 | Vulnerable | SolarWinds |
- cpe:2.3:a:solarwinds:network_performance_monitor:*:*:*:*:*:*:*:* Versions 2020.2.1 to before 2020.2.5 Vulnerable ·SolarWinds
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31474
- 2026-10-03 Alias added: GHSA-v89w-qqfc-fph2
References
More SolarWinds Network Performance Monitor vulnerabilities
- TI-2020-16937 SQL injection in SolarWinds Network Performance Monitor CVSS 3.1HIGH 8.8
- TI-2018-09665 SolarWinds Network Performance Monitor 12.3 allows SQL Injection via the… CVSS 3.0HIGH 8.8
- TI-2021-14118 Netpath Horizontal Privilege Escalation Vulnerability: NPM 2020.2.5 CVSS 3.1MEDIUM 6.4
- TI-2017-06944 The 'Upload logo from external path' function of SolarWinds Network Performance Monitor… CVSS 3.0MEDIUM 4.9
- TI-2017-06943 Persistent cross-site scripting (XSS) in the Add Node function of SolarWinds Network… CVSS 3.0MEDIUM 4.8
- TI-2019-09633 SolarWinds Orion Platform 2018.4 HF3 (NPM 12.4, NetPath 1.1.4) is vulnerable to… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2021-31474 · CVE Program
- CVE-2021-31474 · NVD
- FIRST EPSS
- GHSA-v89w-qqfc-fph2 · 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