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CVE-2026-45459

🗓️ 09 Jun 2026 17:05:24Reported by microsoftType 
cve
 cve
🔗 web.nvd.nist.gov👁 3 Views

CVE-2026-45459: Excel protection mechanism failure lets local attacker bypass security feature.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
Cvelist
CVE-2026-45459 Microsoft Excel Security Feature Bypass Vulnerability
9 Jun 202617:05
cvelist
EUVD
EUVD-2026-35541
9 Jun 202618:30
euvd
NCSC
vulnerabilities present in Microsoft Office
9 Jun 202618:04
ncsc
NVD
CVE-2026-45459
9 Jun 202617:17
nvd
Positive Technologies
PT-2026-47946
9 Jun 202600:00
ptsecurity
Vulners
CNA
Node
microsoftmicrosoft_365_appsMatch16.0.1enterprisex32
OR
microsoftmicrosoft_365_appsMatch16.0.1enterprisex64
Node
[
  {
    "vendor": "Microsoft",
    "product": "Microsoft 365 Apps for Enterprise",
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "16.0.1",
        "lessThan": "https://aka.ms/OfficeSecurityReleases",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office 365 for Mac",
    "versions": [
      {
        "version": "-",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC 2024",
    "platforms": [
      "32-bit Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "16.0.0",
        "lessThan": "https://aka.ms/OfficeSecurityReleases",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC for Mac 2021",
    "versions": [
      {
        "version": "-",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Microsoft Office LTSC for Mac 2024",
    "versions": [
      {
        "version": "-",
        "status": "affected"
      }
    ]
  }
]

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09 Jun 2026 19:32Current
5.4Medium risk
Vulners AI Score5.4
CVSS 3.13.3
3