DSInternals Credential Roaming Elevation of Privilege Vulnerability

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

6.3 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

Impact A vulnerability exists in the DSInternals.Common.Data.RoamedCredential.Save() method, which incorrectly parses the msPKIAccountCredentials LDAP attribute values. As a consequence, a malicious actor would be able to modify the file system of the computer where an application using this function is executed with administrative privileges. A similar security issue used to be present in the Windows operating system, as DSInternals re-implements the Credential Roaming feature of Windows. Exploitability The vulnerability can be exploited under the following circumstances: - An attacker is able to modify the msPKIAccountCredentials attribute of a user account in Active Directory. This attribute is used by the Credential Roaming feature of Windows and each AD user can modify their own roamed credentials. AND - A 3rd party application uses the DSInternals.Common library to export roamed credentials from Active Directory to a file system. AND - The application has administrative…

Published by the source

6 Dec 2022, 21:13 UTC

Last modified by the source

8 Jan 2023, 05:01 UTC

Source last checked

26 Oct 2026, 16:58 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-vx2x-9cff-fhjw

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# Patch Next advisory brief: GHSA-vx2x-9cff-fhjw

Advisory: DSInternals Credential Roaming Elevation of Privilege Vulnerability
IDs: GHSA-vx2x-9cff-fhjw
Record: https://patchnext.com/advisories/ghsa-vx2x-9cff-fhjw (revision 1, source checked 26 Oct 2026, 16:58 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: dsinternals.common 4.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- NuGet dsinternals.common: affected >= 2.21, < 4.8; fixed in 4.8

## Suggested inspection (read-only)
- NuGet dsinternals.common: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on dsinternals.common.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-vx2x-9cff-fhjw (GitHub-reviewed advisory GHSA-vx2x-9cff-fhjw lists affected ranges: NuGet dsinternals.common >=2.21 <4.8)

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