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CVE-2026-551245.5MediumCWE-1287

CVE-2026-55124: Microsoft Word Information Disclosure Vulnerability

Microsoft · Microsoft 365 Apps for Enterprise

Vendor fix available · Affected: Microsoft 365 Apps for Enterprise · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.6%probability of exploitation in the next 30 days
49th percentile
050100

Higher than 49% of scored CVEs

5.5MediumCVSS 3.1
LowMedium

DescriptionCVE.org

Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose information locally.

Affected products11

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • Microsoft · Microsoft 365 Apps for Enterprisefrom 16.0.1 before https://aka.ms/OfficeSecurityReleases
  • Microsoft · Microsoft Office 2019from 19.0.0 before https://aka.ms/OfficeSecurityReleases
  • Microsoft · Microsoft Office 365 for Macfrom 1.0.0 before 16.111.26071215
  • Microsoft · Microsoft Office LTSC 2021from 16.0.1 before https://aka.ms/OfficeSecurityReleases
  • Microsoft · Microsoft Office LTSC 2024from 16.0.0 before https://aka.ms/OfficeSecurityReleases
  • Microsoft · Microsoft Office LTSC for Mac 2021from 16.0.1 before 16.111.26071215
  • Microsoft · Microsoft Office LTSC for Mac 2024from 16.0.0 before 16.111.26071215
  • Microsoft · Microsoft SharePoint Enterprise Server 2016from 16.0.0 before 16.0.5561.1001
  • Microsoft · Microsoft SharePoint Server 2019from 16.0.0 before 16.0.10417.20175
  • Microsoft · Microsoft SharePoint Server Subscription Editionfrom 16.0.0 before 16.0.19725.20434
  • Microsoft · Microsoft Word 2016from 16.0.1 before 16.0.5561.1000

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
Microsoft
Published
July 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-55124 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

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