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CVE-2026-40417

Microsoft Dynamics 365 Business Central Elevation of Privilege Vulnerability

HIGH
7.8
CVSS Score
Published: May 12, 2026 at 04:58 PM UTC
Updated: October 26, 2026 at 12:10 AM UTC
4 products affected across 1 vendorDynamics 365-business CentralDynamics 365 Business Central 2024Dynamics 365 Business Central 2025

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Dynamics 365-business Central· Microsoft
95%
20242024 release_wave_220252025 release_wave_12025 release_wave_220262026 release_wave_125.026.027.028.0
Affected range stops below 25.2.48119, so it looks safe — our inference, not a vendor statement
Affected range stops below 26.0.48120, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0.48102, so it looks safe — our inference, not a vendor statement
Affected range stops below 28.0.49873, so it looks safe — our inference, not a vendor statement
Dynamics 365 Business Central 2024· Microsoft
95%
25.0 ≤ v < 25.2.48119
Affected range stops below 25.2.48119, so it looks safe — our inference, not a vendor statement
Dynamics 365 Business Central 2025· Microsoft
95%
26.0 ≤ v < 26.0.4812027.0 ≤ v < 27.0.48102
Affected range stops below 26.0.48120, so it looks safe — our inference, not a vendor statement
Affected range stops below 27.0.48102, so it looks safe — our inference, not a vendor statement
Dynamics 365 Business Central 2026· Microsoft
95%
28.0 ≤ v < 28.0.49873
Affected range stops below 28.0.49873, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1390

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