# CVE-2026-70009: Microsoft Azure Arc path traversal privilege escalation

Source: https://junglewise.ai/threats/cve-2026-70009-improper-limitation-of-a-pathname-to-a-restricted-directory-path  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-17. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-70009 · Severity: critical · CVSS 9.3 · Published 2026-09-17

Azure Arc is Microsoft's service for managing on-premises and multi-cloud infrastructure. A path traversal vulnerability allows an attacker on the network to escalate privileges on systems running Azure Arc, potentially gaining administrative control and access to sensitive data across connected infrastructure.

Technologies: [Microsoft Azure Arc](https://junglewise.ai/threats/technologies/azure-arc). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-70009 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-70009 being exploited in the wild.

**How severe is CVE-2026-70009?** Critical severity, with a CVSS score of 9.3, published 17 September 2026.

**Which products and versions are affected?** Microsoft Azure Arc.

**Is there a fix for CVE-2026-70009?** 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-2026-70009 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-70009?** Check whether you run Microsoft Azure Arc. 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 path traversal flaw in Azure Arc fails to properly validate or restrict file paths, enabling an unauthenticated attacker to traverse restricted directories and execute privileged operations over the network. The vulnerability allows direct privilege escalation without requiring prior authentication or user interaction, making it a high-impact issue for organizations using Azure Arc for infrastructure management.

## Affected products

- Microsoft Azure Arc

## Timeline

- 2026-09-17: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70009](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70009)

## Related threats

- [Microsoft Azure Arc elevation of privilege](https://junglewise.ai/threats/cve-2026-69399-microsoft-azure-arc-elevation-of-privilege)
- [Microsoft Azure Arc cross-domain policy privilege escalation](https://junglewise.ai/threats/cve-2026-62895-microsoft-azure-arc-cross-domain-policy-privilege-escalation)
- [Microsoft Azure Arc privilege escalation via incorrect authorization](https://junglewise.ai/threats/cve-2026-69555-microsoft-azure-arc-privilege-escalation-via-incorrect)
- [Microsoft Azure Arc name resolution privilege escalation](https://junglewise.ai/threats/cve-2026-65816-microsoft-azure-arc-name-resolution-privilege-escalation)