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EUVD-2026-48457

🗓️ 24 Jul 2026 00:01:11Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 14 Views

Deserialization of untrusted data in Microsoft 365 Copilot enables an authorized attacker to execute code remotely.

Related
Affected
Refs
[
  {
    "enisaIdVendor": [
      {
        "id": "c421d7d5-901a-323f-8c3e-0b341e2235f8",
        "vendor": {
          "name": "Microsoft"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "55650ee1-2cfa-3c78-80d4-12d22f9c65a6",
        "product": {
          "name": "Microsoft 365 Copilot",
          "vendor": {
            "name": "Microsoft"
          }
        },
        "product_version": "-"
      }
    ]
  }
]

Data

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24 Jul 2026 19:36Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.19.9
EPSS0.01694
SSVC
14