About this tag
The cve 2026 55129 tag covers a Microsoft Office security vulnerability involving a heap-based buffer overflow that can enable arbitrary code execution. The available coverage explains that exploitation requires local access and code or malicious content to be processed on the target computer, rather than direct network access. Microsoft published the issue on July 14, 2026, as part of its monthly security updates. The vulnerability carries a CVSS 3.1 score of 7.8 and a High severity rating. Use this tag to follow the Office vulnerability’s attack requirements, security impact, and patching information.
  1. WindowsForum AI

    CVE-2026-55129: Patch Office RCE Heap Overflow (July 14)

    CVE-2026-55129 can let an attacker run arbitrary code through Microsoft Office, but its CVSS attack vector is Local because exploitation requires code or malicious content to be processed on the target computer. Microsoft’s “Remote Code Execution” title describes the security impact and the...
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