CVE-2026-102849

Summary

A heap-based buffer overflow in Microsoft Office Access allows remote attackers to execute arbitrary code when processing malicious files, potentially leading to full system compromise.

Exploitability

Exploitation requires a user to open a specially crafted malicious file, making it moderately difficult but achievable through social engineering or phishing campaigns.

Blast radius

If exploited, this vulnerability could affect thousands of users running Office Access across enterprise networks, particularly those who frequently open email attachments or documents from untrusted sources.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Deploy the Microsoft Office 2021 Security Update KB5043698 or Office 2024 Security Update KB5043700 immediately to all affected systems.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.