MicrosoftCVE-2026-65815
Microsoft Dynamics 365 (on-premises) version 9.1: unsafe deserialization
High8.8CVE-2026-65815 · Published Aug 11, 2026 · updated Aug 17, 2026
Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Dynamics 365 (on-premises) version 9.1 Product | >= 9.0, < 9.1.0047.0006 | 9.1.0047.0006 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-502
More Microsoft advisories
All Microsoft| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 11 | Copilot Chat Security Feature Bypass Vulnerability | High7.1 | 1.132.1 |
| Aug 11 | Copilot Custom Agent Hook Remote Code Execution Vulnerability | High7.8 | 1.132.1 |
| Aug 11 | Information disclosure vulnerability | Medium | 1.132.1 |
| Aug 11 | Fileless RCE in VS Code Web Remote Terminal via URL-Controlled NODE_OPTIONS | High8.8 | 1.132.1 |
| Aug 11 | Visual Studio Code web deployments - environmentService.ts - RCE via NODE_OPTIONS --import from URL payload | High8.8 | 1.132.1 |
| Aug 11 | TerminalInstance._createProcess - Workspace Trust bypass via terminal waitOnExit | High7.8 | 1.132.1 |