CVE-2026-88203: Microsoft Office PowerPoint Information Disclosure Vulnerability
Microsoft Office PowerPoint Information Disclosure Vulnerability
Other sources
Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.17932.21056 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in https://aka.ms/OfficeSecurityReleases - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 16.0.14334.20974
Event History
Frequently Asked Questions
What does an attacker need to do to exploit this issue?
The attacker can exploit the vulnerability over a network without prior privileges, but user interaction is required. The available data does not specify the form of interaction or delivery method.
What is the likely impact if exploitation succeeds?
Successful exploitation can disclose information. The provided severity vector indicates high confidentiality impact, with no integrity or availability impact stated.
Which Office products should be included in remediation triage?
Review Microsoft 365 Apps for Enterprise, Microsoft Office PowerPoint, and Microsoft Office LTSC 2021 and 2024 in both 32-bit and 64-bit editions where listed. The data does not identify unaffected versions or configurations.