CVE-2026-26133
M365 Copilot Information Disclosure Vulnerability
HIGH 7.1
At a glance
- Source
- NVD
- EPSS
- EPSS 0.44 % · percentile 38 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- microsoft
- NVD status
- Modified
Description
AI command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.
Weaknesses (CWE)
- CWE-77 — Command Injection
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS: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 |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N | NVD · secure@microsoft.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-12111
- GCVE · GCVE-0-2026-26133
CERT-FR advisories
- CERTFR-2026-AVI-0295 — Vulnérabilité dans les produits Microsoft · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0294 — Vulnérabilité dans Microsoft Office · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0293 — Vulnérabilité dans Microsoft Edge · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:iphone_os:*:*< 2.107.2cpe:2.3:a:microsoft:365_copilot:*:*:*:*:*:android:*:*< 16.0.19815.10000cpe:2.3:a:microsoft:edge:*:*:*:*:*:android:*:*< 145.3800.99cpe:2.3:a:microsoft:edge:*:*:*:*:*:iphone_os:*:*< 145.3800.99cpe:2.3:a:microsoft:excel:*:*:*:*:*:iphone_os:*:*< 2.106.2cpe:2.3:a:microsoft:excel:*:*:*:*:*:android:*:*< 16.0.19822.20038cpe:2.3:a:microsoft:loop:*:*:*:*:*:iphone_os:*:*< 2.106cpe:2.3:a:microsoft:onenote:*:*:*:*:*:android:*:*< 16.0.19725.20142cpe:2.3:a:microsoft:onenote:-:*:*:*:*:iphone_os:*:*cpe:2.3:a:microsoft:outlook:*:*:*:*:*:android:*:*< 5.2605.0cpe:2.3:a:microsoft:outlook:*:*:*:*:*:iphone_os:*:*< 5.2605.0cpe:2.3:a:microsoft:outlook:-:*:*:*:*:macos:*:*cpe:2.3:a:microsoft:power_bi:*:*:*:*:*:android:*:*< 2.2.260210.21290750cpe:2.3:a:microsoft:power_bi:-:*:*:*:*:iphone_os:*:*cpe:2.3:a:microsoft:powerpoint:*:*:*:*:*:iphone_os:*:*< 2.106.2cpe:2.3:a:microsoft:powerpoint:*:*:*:*:*:android:*:*< 16.0.19822.20038cpe:2.3:a:microsoft:teams:*:*:*:*:*:android:*:*< 1.0.0.2026043102cpe:2.3:a:microsoft:teams:*:*:*:*:*:iphone_os:*:*< 8.3.1cpe:2.3:a:microsoft:word:*:*:*:*:*:iphone_os:*:*< 2.106.2cpe:2.3:a:microsoft:word:*:*:*:*:*:android:*:*< 16.0.19822.20038
Affected products
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |