CVE-2026-42824

Summary

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

Affected Software

Weaknesses

• CWE-77: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

ADP Enrichment

CISA ADP Vulnrichment

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

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42824

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