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CVE-2026-47647

CRITICAL 9.9

Published 2026-06-18 · Last modified 2026-07-01

Improper access control in Microsoft Dynamics 365 allows an authorized attacker to elevate privileges over a network.

ELEVATED IMPACT

Severe if exploited (CVSS 9.9), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 34th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

9.9CVSS 3.1 · CRITICAL

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires a low-privilege account
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Affected

Vendors Microsoft

Products Microsoft Dynamics 365

Weakness (CWE)

  • CWE-284

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

References

Patches & mitigations

Sources: NVD · CVE.org · EPSS