PT-2026-58560 · Microsoft · Office
CVE-2026-55056
·
Published
2026-07-14
·
Updated
2026-07-15
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Microsoft Office (affected versions not specified)
Description
A heap-based buffer overflow occurs when a program writes more data to a heap memory block than it can hold, potentially corrupting memory. This issue allows an unauthorized attacker to execute arbitrary code locally by processing a malicious Office file.
Recommendations
Install the July updates for Microsoft Office.
Fix
RCE
DoS
Memory Corruption
Heap Based Buffer Overflow
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Related Identifiers
Affected Products
Office