# CVE-2026-72959: Microsoft Windows Routing and Remote Access Service remote code execution

Source: https://junglewise.ai/threats/cve-2026-72959-microsoft-windows-routing-and-remote-access-service-remote-code  
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-2026-72959 · Severity: high · CVSS 8.8 · Published 2026-09-08

Windows RRAS is a Microsoft networking service that allows remote users to connect to corporate networks. A remote code execution vulnerability in this service allows unauthenticated attackers to execute arbitrary code and gain unauthorized access to affected systems, potentially compromising network security and enabling lateral movement within an organization.

Technologies: [Microsoft Windows RRAS](https://junglewise.ai/threats/technologies/windows-rras). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-72959 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-72959 being exploited in the wild.

**How severe is CVE-2026-72959?** High severity, with a CVSS score of 8.8, published 8 September 2026.

**Which products and versions are affected?** Microsoft Windows RRAS <UNKNOWN>.

**Is there a fix for CVE-2026-72959?** 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-2026-72959 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-72959?** Check whether you run Microsoft Windows RRAS at an affected version. 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

This is a remote code execution vulnerability in Windows Routing and Remote Access Service (RRAS). The vulnerability allows an attacker with network access to the RRAS interface to execute arbitrary code on the affected system without authentication. Successful exploitation grants an attacker complete control over the compromised system. This is a network-reachable vulnerability with no authentication required, making it a particularly high-risk issue for systems exposed to untrusted networks. Microsoft has issued patches for affected Windows versions.

## Affected products

- Microsoft Windows RRAS <UNKNOWN>

## Timeline

- 2026-09-08: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72959](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72959)

## Related threats

- [Microsoft Windows RRAS incorrect authorization bypass](https://junglewise.ai/threats/cve-2026-70057-incorrect-authorization-in-windows-routing-and-remote-access)
- [Microsoft Windows RRAS remote code execution](https://junglewise.ai/threats/cve-2026-69590-microsoft-windows-rras-remote-code-execution)