CVE-2026-26133HighMicrosoft CVSS 7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C

Microsoft security update for CVE-2026-26133

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-26133 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26133. This page also shows what EchelonGraph holds for CVE-2026-26133, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products20

  • Microsoft 365 Copilot for Android
  • Microsoft 365 Copilot for iOS
  • Microsoft Edge for Android
  • Microsoft Edge for iOS
  • Microsoft Excel for Android
  • Microsoft Excel for iOS
  • Microsoft Loop for iOS
  • Microsoft OneNote for Android
  • Microsoft OneNote for iOS
  • Microsoft Outlook for Android
  • Microsoft Outlook for Mac
  • Microsoft Outlook for iOS
  • Microsoft PowerBI for Android
  • Microsoft PowerBI for iOS
  • Microsoft PowerPoint for Android
  • Microsoft PowerPoint for iOS
  • Microsoft Teams for Android
  • Microsoft Teams for iOS
  • Microsoft Word for Android
  • Microsoft Word for iOS

✅ Updates Microsoft lists: 19 updates

19 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update2.106.26020617
—Security Update5.2605
—Security Update5.2605
—Security Update2.107.2
—Security Update145.3800.99
—Security Update8.3.1
—Security Update1.0.0.2026043102
—Security Update16.0.19822.20038
—Security Update16.0.19822.20038
—Security Update2.106.26020617
—Security Update2.106.26020617
—Security Update2.106.26020617
—Security Update5.2605
—Security Update16.0.19815.10000
—Security Update2.2.260210.21290750
—Security Update1.2.260302.2193910
—Security Update16.0.19725.20142
—Security Update16.0.19822.20038
—Security Update2.106.26020617

🧭 EchelonGraph on CVE-2026-26133

EchelonGraph score
7.1 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-26133, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (21)