Deserialization in Solarwinds Observability Self-Hosted
CVE-2026-28325
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (74.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
Weakness classification (CWE)
References
- documentation.solarwinds.com/en/success_center/orionplatform/content/release_no… (release-notes)
- www.solarwinds.com/trust-center/security-advisories/CVE-2026-28325 (vendor-advisory)
- documentation.solarwinds.com/en/success_center/orionplatform/content/core-secur… (x_secure-configuration-guide)
Frequently asked questions
- What is CVE-2026-28325?
- CVE-2026-28325 is a high-severity vulnerability in Solarwinds Observability Self-Hosted, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-09-22.
- How severe is CVE-2026-28325?
- High severity. CVSS v3 base score is 8.8 out of 10.