PT-2026-61976 · Solarwinds · Serv-U

CVE-2026-28321 · Published 2026-07-21 · Updated 2026-07-21

Mitre

CVSS v3.1

9.1

Critical

Base vector

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

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.

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

CVE-2026-28321

Affected Products

Serv-U

References · 3

• https://solarwinds.com/trust-center/security-advisories/CVE-2026-28321 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-28321 · Security Note
• https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm · Note