# CVE-2026-47647: Microsoft Dynamics 365 privilege escalation via improper access control

Source: https://junglewise.ai/threats/cve-2026-47647-microsoft-dynamics-365-privilege-escalation-via-improper-access  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-18. Updated: 2026-06-21  
License: CC BY 4.0 with a link back

CVE-2026-47647 · Severity: critical · CVSS 9.9 · Published 2026-06-18

Microsoft Dynamics 365, a suite of enterprise resource planning and customer relationship management applications, contains a critical security flaw. An authorized user with low-level access can exploit improper access controls to gain significantly higher permissions across the platform. This could allow an attacker to access sensitive business data, modify records, or disrupt operations.

Technologies: [Microsoft Dynamics 365](https://junglewise.ai/threats/technologies/dynamics-365). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-47647 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47647 being exploited in the wild.

**How severe is CVE-2026-47647?** Critical severity, with a CVSS score of 9.9, published 18 June 2026.

**Which products and versions are affected?** Microsoft Dynamics 365 All versions.

**Is there a fix for CVE-2026-47647?** 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-2026-47647 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-47647?** Check whether you run Microsoft Dynamics 365 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

A privilege escalation vulnerability exists in Microsoft Dynamics 365 due to improper access control (CWE-284). An attacker must be authenticated to the network with low-privileged credentials to exploit this flaw. By sending specially crafted requests to the Dynamics 365 service, the attacker can bypass authorization checks to gain administrative-level access. The vulnerability has a high impact on confidentiality, integrity, and availability, and notably involves a 'Scope' change in the CVSS metric, suggesting the attacker may be able to impact components beyond the initial security scope. Microsoft has addressed this in their security update guide.

## Affected products

- Microsoft Dynamics 365 All versions

## Timeline

- 2026-06-18: disclosed
- 2026-06-18: advisory

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47647](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47647)

## Related threats

- [Microsoft Dynamics 365 code injection in code generation](https://junglewise.ai/threats/cve-2026-77908-microsoft-dynamics-365-code-injection-in-code-generation)
- [Microsoft Dynamics 365 deserialization of untrusted data](https://junglewise.ai/threats/cve-2026-65772-microsoft-dynamics-365-deserialization-of-untrusted-data)
- [Microsoft Dynamics 365 sensitive information disclosure](https://junglewise.ai/threats/cve-2026-66301-microsoft-dynamics-365-sensitive-information-disclosure)
- [Microsoft Dynamics 365 deserialization of untrusted data in on-premises](https://junglewise.ai/threats/cve-2026-65815-microsoft-dynamics-365-deserialization-of-untrusted-data-in-on)
- [Microsoft Dynamics 365 code injection](https://junglewise.ai/threats/cve-2026-42833-microsoft-dynamics-365-code-injection)