CVE-2026-88178

Summary

A use-after-free vulnerability in Microsoft Office PowerPoint allows remote attackers to execute arbitrary code when a malicious file is opened. This critical flaw enables unauthorized code execution with high impact across all Windows systems running PowerPoint.

Exploitability

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

Blast radius

The vulnerability affects all Windows users who have PowerPoint installed, creating a massive potential attack surface with widespread impact across enterprise and consumer environments.

Detection

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

Prioritized remediation

Deploy Microsoft Security Update MS26-058 immediately to address this critical vulnerability.

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