Vulnerability Report

CVE-2026-28321

Title: CVE-2026-28321

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2026-28321.

CWE Category CWE-284

Published Date Jul 21, 2026

Modified Date Jul 24, 2026

Exploit Status Not Found

Score 9.1 CVSS v3.1

Exploit Probability (EPSS)

0.41%

Vulnerability Summary

CVE-2026-28321: 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.

Impacted Vendors

rhinosoft 1

solarwinds 1

Reference Links

https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_2026-3_release_notes.htm https://www.solarwinds.com/trust-center/security-advisories/CVE-2026-28321

CVSS v3.1

Source Entity [email protected]

Severity CRITICAL

9.1

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-28321 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

July 24, 2026 MODIFIED

Vulnerability data updated via NVD.

July 24, 2026 MODIFIED

Vulnerability data updated via NVD.

July 21, 2026 MODIFIED

Vulnerability data updated via NVD.

July 21, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Stack

No specific products linked.