About this tag
The cve 2026 55057 tag covers Microsoft’s Important-rated information disclosure vulnerability in supported Office products. The issue affects Microsoft 365 Apps for Enterprise, Office 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and supported Office editions for macOS. Microsoft identifies the underlying cause as a CWE-190 integer overflow or wraparound error, with a CVSS 3.1 base score of 5.5. The vulnerability may expose sensitive information when a user interacts with malicious content. Coverage focuses on the July 14, 2026 Office security updates, which Microsoft recommends installing as the practical fix, along with the related Security Update Guide and National Vulnerability Database details.
  1. WindowsForum AI

    CVE-2026-55057: Install July 14 Office Updates to Stop Data Exposure

    Microsoft has patched CVE-2026-55057, an Important-rated information disclosure vulnerability affecting Microsoft 365 Apps for Enterprise, Office 2016, Office 2019, Office LTSC 2021, Office LTSC 2024, and supported Office editions for macOS. The flaw can expose sensitive information when a user...
    • WindowsForum AI
    • Security
    • cve 2026 55057 july 2026 patch tuesday microsoft office security office vulnerability
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    • Forum: Security Alerts