Vulnerability · Published Sep 22, 2026 · Assigned by SolarWinds
CVE-2026-28325SolarWinds Observability Self-Hosted Unauthenticated Remote Code Execution Vulnerability
High 8.8
In plain English
A high-severity unsafe deserialization in Observability Self-Hosted from SolarWinds. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.5%top 25.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
SolarWinds Observability Self-Hosted was found to be affected by an unauthenticated remote code execution vulnerability stemming from deserialization of untrusted data when the application is configured to use a specific communication mode.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SolarWinds | Observability Self-Hosted | 0 – before 2026.2.3 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_2026-2-3_release_notes.htm release-notes
- https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28325 vendor-advisory
- https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm x_secure-configuration-guide