CVE-2026-68813

Analyzed Analyzed - Analysis Complete

Out-of-Bounds Read in Microsoft Office Excel

Publication date: 2026-08-11

Last updated on: 2026-08-12

Assigner: Microsoft Corporation

Description

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-12

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-68813

EUVD

EUVD-2026-56464

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	365_apps	*
microsoft	365_apps	*
microsoft	office_2019	*
microsoft	office_2019	*
microsoft	microsoft_365	*
microsoft	office_2021	*
microsoft	office_2021	*
microsoft	office_2021	*
microsoft	office_2024	*
microsoft	office_2024	*
microsoft	office_2024	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out-of-bounds read issue in Microsoft Office Excel. It allows an unauthorized attacker to read memory outside the intended buffer, potentially exposing sensitive information stored on the local system.

Detection Guidance

This vulnerability is an out-of-bounds read in Microsoft Office Excel that allows local information disclosure. Detection typically involves checking for vulnerable Excel versions or applying Microsoft's official patches. No specific commands are provided in the available resources.

Impact Analysis

An attacker could exploit this to access confidential data on your computer, such as files opened in Excel or other sensitive information stored in memory. This requires local access but could lead to unauthorized information disclosure.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection. Organizations may face compliance violations if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Office Excel to patch the out-of-bounds read vulnerability.

Hi! I’m here to help you understand CVE-2026-68813. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70