# CVE-2026-71333: Microsoft Windows Remote Access Connection Manager use-after-free privilege escalation

Source: https://junglewise.ai/threats/cve-2026-71333-microsoft-windows-remote-access-connection-manager-use-after-free  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-08. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-71333 · Severity: high · CVSS 7 · Published 2026-09-08

Windows Remote Access Connection Manager is a system service that manages remote access connections on Windows machines. A use-after-free vulnerability in this service allows an authorized local user to execute code with elevated privileges, potentially leading to full system compromise.

Technologies: [Microsoft Windows Remote Access Connection Manager](https://junglewise.ai/threats/technologies/windows-remote-access-connection-manager). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-71333 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-71333 being exploited in the wild.

**How severe is CVE-2026-71333?** High severity, with a CVSS score of 7, published 8 September 2026.

**Which products and versions are affected?** Microsoft Windows Remote Access Connection Manager.

**Is there a fix for CVE-2026-71333?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-71333 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-71333?** Check whether you run Microsoft Windows Remote Access Connection Manager. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A use-after-free vulnerability exists in Windows Remote Access Connection Manager where freed memory is accessed after deallocation. An authorized attacker with local access can trigger this memory safety flaw to achieve privilege escalation. The vulnerability requires local access and existing privileges on the system. Successful exploitation allows an attacker to execute arbitrary code in the context of the Remote Access Connection Manager service, which runs with elevated privileges.

## Affected products

- Microsoft Windows Remote Access Connection Manager

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71333](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71333)

## Related threats

- [Windows Remote Access Connection Manager improper access control](https://junglewise.ai/threats/cve-2026-70137-improper-access-control-in-windows-remote-access-connection)
- [Microsoft Windows Remote Access Connection Manager missing authorization](https://junglewise.ai/threats/cve-2026-72966-microsoft-windows-remote-access-connection-manager-missing)
- [Microsoft Windows Remote Access Connection Manager integer underflow](https://junglewise.ai/threats/cve-2026-71352-microsoft-windows-remote-access-connection-manager-integer)
- [Microsoft Windows Remote Access Connection Manager heap buffer overflow](https://junglewise.ai/threats/cve-2026-71343-microsoft-windows-remote-access-connection-manager-heap-buffer)
- [Microsoft Windows Remote Access Connection Manager use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-71342-microsoft-windows-remote-access-connection-manager-use-after-free)