CVE-2025-26397: high-severity vulnerability in SolarWinds Observability Self-Hosted
SolarWinds Observability Self-Hosted Deserialization of Untrusted Data Local Privilege Escalation Vulnerability
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.3%
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
SolarWinds · SolarWinds Observability Self-HostedRelated CVEs — SolarWinds Observability Self-Hosted
In the same product, most dangerous first.
CVE-2026-28328HIGHSolarWinds Observability Self-Hosted broken authorization schemaEPSS 0.5%CVE-2026-28297MEDIUMSolarWinds Observability Self-Hosted Stored Cross-Site Scripting VulnerabilityEPSS 0.4%CVE-2026-28298MEDIUMSolarWinds Observability Self-Hosted Stored Cross-Site Scripting VulnerabilityEPSS 0.4%CVE-2025-26391MEDIUMSolarWinds Observability Self-Hosted XSS VulnerabilityEPSS 0.3%CVE-2026-28329MEDIUMSolarWinds Observability Self-Hosted Server-Side Request Forgery (SSRF)EPSS 0.3%CVE-2026-28330MEDIUMSolarWinds Observability Self-Hosted Cross-Site Scripting VulnerabilityEPSS 0.3%