# CVE-2026-70057: Microsoft Windows RRAS incorrect authorization bypass

Source: https://junglewise.ai/threats/cve-2026-70057-incorrect-authorization-in-windows-routing-and-remote-access  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-70057 · Severity: medium · CVSS 5.5 · Published 2026-10-13

Windows Routing and Remote Access Service (RRAS) is a network service that enables remote connectivity for corporate systems. An authorized attacker with local access can bypass security controls in RRAS to gain unauthorized privileges. This could allow an attacker to escalate their access or circumvent network protection policies.

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

## Quick answers

**Is CVE-2026-70057 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-70057 being exploited in the wild.

**How severe is CVE-2026-70057?** Medium severity, with a CVSS score of 5.5, published 13 October 2026.

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

**Is there a fix for CVE-2026-70057?** 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.

**Am I affected by CVE-2026-70057?** Check whether you run Microsoft Windows RRAS. 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

An incorrect authorization vulnerability in Windows RRAS allows an authenticated local attacker to bypass security features. The flaw requires prior system access as an authorized user; exploitation is local via a direct attack vector without network exposure.

## Affected products

- Microsoft Windows RRAS

## Timeline

- 2026-10-13: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70057](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70057)

## Related threats

- [Microsoft Windows Routing and Remote Access Service remote code execution](https://junglewise.ai/threats/cve-2026-72959-microsoft-windows-routing-and-remote-access-service-remote-code)
- [Microsoft Windows RRAS remote code execution](https://junglewise.ai/threats/cve-2026-69590-microsoft-windows-rras-remote-code-execution)