SolarWinds Serv-U Broken Access Control (BAC) Enables Arbitrary File RW & Priv Esc
CVE-2026-28321 Published on July 21, 2026
SolarWinds Serv-U Broken Access Control Vulnerability
SolarWinds Serv-U is affected by a broken access control vulnerability that could allow arbitrary file read and write, which can then be used to escalate privileges and execute code as root. A domain administrator access is required, and the impact is lower in Windows installations.
Vulnerability Analysis
CVE-2026-28321 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2026-28321 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2026-28321
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