CVE-2026-65815

Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-25)

CWE

CWE-502

Published

2026-08-11

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• microsoft:dynamics_365

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65815

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