CVE-2026-97748
Undergoing Analysis
Undergoing Analysis - In Progress
Heap-based Buffer Overflow in Microsoft Office Excel
Vulnerability report for CVE-2026-97748, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-10-13
Assigner: Microsoft Corporation
Description
Description
Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Microsoft | Microsoft | 365 Apps for Enterprise 16.0.1 |
| Microsoft | Microsoft | Office 365 for Mac 1.0.0 |
| Microsoft | Microsoft | Office LTSC 2021 16.0.1 |
| Microsoft | Microsoft | Office LTSC 2024 16.0.0 |
| Microsoft | Microsoft | Office LTSC for Mac 2021 16.0.1 |
| Microsoft | Microsoft | Office LTSC for Mac 2024 16.0.0 |
| Microsoft | Office | Online Server 16.0.0.0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
