CVE-2025-26397 HIGH

CVE-2025-26397: SolarWinds Observability Self-Hosted Deserialization of Untrusted Data Local Privilege Escalation Vulnerability

Vendor Solarwinds
Product SolarWinds Observability Self-Hosted
Weakness CWE-502 · Unsafe deserialization
Published July 24, 2025
Last update July 24, 2025

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

July 24, 2025 CVE published
July 24, 2025 Record updated