SB2026013033 - Multiple privilege escalation vulnerabilities in SolarWinds Serv-U

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improper access control (CVE-ID: CVE-2025-40548)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote privileged user can bypass implemented security restrictions and execute arbitrary code on the system.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2025-40547)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary code.

The vulnerability exists due to a logic error. A remote privileged user can execute arbitrary code on the system. 

3) Protection Mechanism Failure (CVE-ID: CVE-2025-40549)

CWE-ID: CWE-693 - Protection Mechanism Failure

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary code. 

The vulnerability exists due to insufficient implementation of path restrictions measures. A remote privileged user can bypass implemented security restrictions and execute arbitrary code on the system.

Remediation

Install update from vendor's website.

References

• https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40548
• https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40547
• https://www.solarwinds.com/trust-center/security-advisories/cve-2025-40549