CVE-2026-28324: SolarWinds Observability Self-Hosted Remote Code Execution Vulnerability
- Is it exploited?
Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.
- How likely is exploitation in the next 30 days?
- 0.7%
EPSS score, percentile 51.2 of all scored records. A probability estimated by FIRST, not a report of exploitation.
- How severe?
- 9.8 Critical
CVSS v3.1 base score, given by the CNA
- What should I do?
SolarWinds recommends customers to upgrade to Observability Self-Hosted version 2026.2.3 as soon as is practical. Full textSolution from the CVE record.
CISA has set no required action, because the vulnerability is not in KEV.
- Which versions are affected?
Affected
- before 2026.2.3
Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.
What to do
Solution (from the CVE record)
SolarWinds recommends customers to upgrade to Observability Self-Hosted version 2026.2.3 as soon as is practical. If unable to update immediately, apply the recommended workaround.
Workaround (from the CVE record)
Configure Player Password to secure communication between WPM Player agent and Observability Self-Hosted server. Reference : https://documentation.solarwinds.com/en/success_center/wpm/content/orionwpmagaddingalocation.htm https://documentation.solarwinds.com/en/success_center/wpm/content/orionwpmagaddingalocation.htm
Advisories and patches
This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | before 2026.2.3 |
Versions not listed are: unaffected.
Source: CVE List, as of . About the data.
About this vulnerability
SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability due to the insufficient integrity checks. Installations configured in a non-default and non-secure configuration are affected.
Summary: CVE record, as of .
- CISA has not added CVE-2026-28324 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
- The CVE record was published on 22 Sep 2026.
- The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.7% (percentile 51.2), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
- CISA's SSVC assessment in the CVE record: exploitation none, automatable yes, technical impact total.
Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.
Description
SolarWinds Observability Self-Hosted Remote Code Execution Vulnerability
SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability due to the insufficient integrity checks. Installations configured in a non-default and non-secure configuration are affected.
Source: CVE List, as of . About the data.
Weakness
CWE-345, 1 CAPEC
- CWE-345: Insufficient Verification of Data Authenticity
Attack patterns (CAPEC)
- CAPEC-242: Code Injection
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.
Timeline
| Date | Event |
|---|---|
| CVE record published |
References
1
Known exploited SolarWinds vulnerabilities
- CVE-2026-28318: SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability
- CVE-2025-26399: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
- CVE-2025-40536: SolarWinds Web Help Desk Security Control Bypass Vulnerability
- CVE-2025-40551: SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability
- CVE-2024-28987: SolarWinds Web Help Desk Hardcoded Credential Vulnerability