CVE-2026-28321 Details
Description
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.
A broken access control vulnerability has been identified in SolarWinds Serv-U versions through 15.5.4 Hotfix 1. This vulnerability could allow arbitrary file read and write operations, which could be exploited to escalate privileges and execute code as the root user. The issue requires domain administrator access to exploit, and its impact is reduced in Windows installations.
Users can upgrade to SolarWinds Serv-U 2026.3 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 23, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm | [email protected] | Release NotesVendor Advisory |
| https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28321 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| solarwinds serv-u | < 2026.3 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | Initial Analysis | [email protected] |
| Jul 24, 2026 | CVE Modified | CISA-ADP |
| Jul 21, 2026 | CVE Modified | CISA-ADP |
| Jul 21, 2026 | New CVE Received | [email protected] |