CVE-2026-40364
Microsoft Word Remote Code Execution Vulnerability
HIGH 8.4
En bref
- Source
- NVD
- EPSS
- EPSS 4.42 % · centile 91 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- microsoft
- Statut NVD
- Analyzed
Description
Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Faiblesses (CWE)
- CWE-843 — Confusion de type (accès à une ressource via un type incompatible)
- CWE-908 — Utilisation d'une ressource non initialisée
- CWE-122 — Débordement de tampon sur le tas
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
| CVSS 3.1 | HIGH 8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · secure@microsoft.com (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-29646
- GCVE · GCVE-0-2026-40364
Avis du CERT-FR
- CERTFR-2026-AVI-0584 — Multiples vulnérabilités dans Microsoft Office · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x64:*cpe:2.3:a:microsoft:office:2019:*:*:*:*:*:x86:*cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x64:*cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:-:x86:*cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:*:*:*:*:macos:*:*cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x64:*cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:-:x86:*cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:*:*:*:*:macos:*:*cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x64:*cpe:2.3:a:microsoft:word:2016:*:*:*:*:*:x86:*
Produits affectés
| Produit | Versions |
|---|---|
| Microsoft · Microsoft 365 Apps for Enterprise | affected 16.0.1 < https://aka.ms/OfficeSecurityReleases |
| Microsoft · Microsoft Office 2019 | affected 19.0.0 < https://aka.ms/OfficeSecurityReleases |
| Microsoft · Microsoft Office LTSC 2021 | affected 16.0.1 < https://aka.ms/OfficeSecurityReleases |
| Microsoft · Microsoft Office LTSC 2024 | affected 16.0.0 < https://aka.ms/OfficeSecurityReleases |
| Microsoft · Microsoft Office LTSC for Mac 2021 | affected 16.0.1 < 16.109.26051019 |
| Microsoft · Microsoft Office LTSC for Mac 2024 | affected 16.0.0 < 16.109.26051019 |
| Microsoft · Microsoft Word 2016 | affected 16.0.1 < 16.0.5552.1000 |
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 |