CVE-2026-42898

critical

Published 2026-05-12 · Modified 2026-05-14

CVSS v3

9.9

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

CVSS v2

—

VIR risk

9.9

Description

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

Predictions

Exploit likelihood

98%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: secure@microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42898

Application impact

Vendor	Product	Versions	Fixed
microsoft	dynamics_365	`{"startIncluding":"9.1.1.914","endExcluding":"9.1.45.11"}`	`9.1.45.11`

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42898

CWEs

CWE-94

Verify integrity in audit chain (admin only). AS-IS.