Deserialization of Untrusted Data Vulnerability in SolarWinds Observability Self-Hosted
CVE-2025-26397

7.8HIGH

Key Information:

Vendor

Solarwinds
Status
Solarwinds Observability Self-hosted
Vendor
CVE Published:
24 July 2025

What is CVE-2025-26397?

The SolarWinds Observability Self-Hosted platform is impacted by a vulnerability that allows an attacker with low-level permissions to escalate their privileges. This security flaw enables the execution of malicious files placed in directories that typically require elevated permissions. To exploit this vulnerability, an attacker must have local access to the host server and authenticate using a low-level account. Prompt remediation is essential to secure the affected systems and prevent potential misuse.

Affected Version(s)

SolarWinds Observability Self-Hosted 2025.2 and previous versions

References

https://www.solarwinds.com/trust-center/security-advisori...
https://documentation.solarwinds.com/en/success_center/or...

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

ccc working with the Trend Micro Zero Day Initiative
JSON
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CVE-2025-26397 : Deserialization of Untrusted Data Vulnerability in SolarWinds Observability Self-Hosted