High severity · published Sep 22, 2026
CVE-2026-28325
SolarWinds Observability Self-Hosted Unauthenticated Remote Code Execution Vulnerability
8.8
CVSS
1.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
Observability Self-Hosted · SolarWinds
before 2026.2.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-28325
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-28325
documentation.solarwinds.com
https://documentation.solarwinds.com/en/success_center/orionplatform/content/core-secure-configuration.htm
documentation.solarwinds.com
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/hco_2026-2-3_release_notes.htm
www.solarwinds.com
https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28325
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