CVE-2026-54130

Summary

Missing authentication for critical function in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Affected Software

Weaknesses

• CWE-306: CWE-306: Missing Authentication for Critical Function

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54130

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