High severity8.8NVD Advisory· Published Aug 11, 2026· Updated Aug 17, 2026
CVE-2026-65815
CVE-2026-65815
Description
Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
Affected products
2cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:*+ 1 more
- cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:*range: >=9.1,<9.1.47.06
- (no CPE)
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65815nvdVendor AdvisoryPatch
News mentions
2- Patch Tuesday - August 2026Rapid7 Blog · Aug 11, 2026
- Microsoft Patch Tuesday Update August 2026 – 394 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Aug 11, 2026