SolarWinds Serv-U Patches Critical Remote Code Execution Vulnerabilities

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SolarWinds Serv-U Patches Critical Remote Code Execution Vulnerabilities

First seen 20 Nov 2025, 08:16 UTC • •41.7

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ThreatCluster •March 12, 2026 at 13:27 UTC

SolarWinds has released security patches for three critical remote code execution vulnerabilities in its Serv-U software. These vulnerabilities, disclosed in version 15.5.3, could allow attackers with administrative privileges to execute arbitrary code on affected systems, posing significant risks to organizations using the file transfer software.

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Threat Graph

5 entities, 4 inferred relationships (STIX 2.1).

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Technique (2)

Remote Code Execution
Zero-day Exploit

Organization (1)

SolarWinds

Vulnerability (1)

CVE-2025-40549

Affected Platform (1)

Serv-U

Relationships

CVE-2025-40549 targets Serv-U
Remote Code Execution targets Serv-U
Zero-day Exploit targets Serv-U
CVE-2025-40549 related to SolarWinds

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