CVE-2025-26397

SolarWinds Observability Self-Hosted Deserialization of Untrusted Data Local Privilege Escalation Vulnerability

Description

SolarWinds Observability Self-Hosted is susceptible to Deserialization of Untrusted Data Local Privilege Escalation vulnerability. An attacker with low privileges can escalate privileges to run malicious files copied to a permission-protected folder. This vulnerability requires authentication from a low-level account and local access to the host server.

Remediation

Solution:

  • SolarWinds recommends that customers upgrade to SolarWinds Observability Self-Hosted 2025.2.1 as soon as it becomes available.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.04%
Affected: SolarWinds SolarWinds Observability Self-Hosted
Published at:
Updated at:

References

Link Tags
https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-26397
https://documentation.solarwinds.com/en/success_center/orionplatform/content/release_notes/solarwinds_platform_2025-2-1_release_notes.htm

Frequently Asked Questions

What is the severity of CVE-2025-26397?
CVE-2025-26397 has been scored as a high severity vulnerability.
How to fix CVE-2025-26397?
To fix CVE-2025-26397: SolarWinds recommends that customers upgrade to SolarWinds Observability Self-Hosted 2025.2.1 as soon as it becomes available.
Is CVE-2025-26397 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-26397 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-26397?
CVE-2025-26397 affects SolarWinds SolarWinds Observability Self-Hosted.
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