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CVE-2026-69678

Microsoft Office PowerPoint Remote Code Execution Vulnerability

Published: Sep 8, 2026Updated: Sep 9, 2026 Sources: CVE List NVDCWE-416

Description

Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

In plain language

AI Act now

CVE-2026-69678 is a serious Microsoft PowerPoint security flaw that can let an attacker run code over the network without needing your password; if you use affected Microsoft Office/PowerPoint versions, you should patch right away.

Executive summary

CVE-2026-69678 is an unauthorized remote code execution vulnerability in Microsoft Office PowerPoint caused by a use-after-free condition (CWE-416), where an attacker can craft a malicious file/message to trigger the faulty memory handling and achieve code execution over the network.

If affected, business impact
Full takeover of the Office appMalware execution on your deviceBusiness disruptionData theft from documents

What to do now

  1. Check whether your Microsoft Office/PowerPoint is in one of these affected products/editions: microsoft 365 apps, microsoft office, Microsoft Office 365 for Mac, Microsoft Office LTSC for Mac 2021, Microsoft Office LTSC for Mac 2024, Microsoft PowerPoint 2016, microsoft 365, office 2019, office 2021, office 2024.
  2. Confirm the exact installed version of PowerPoint/Office (e.g., in the Office app via About/Account) and compare it to the fixed versions listed below.
  3. Update to the fixed version for your product line: microsoft 365 apps → 16.0.20326.20138; microsoft office → 16.0.10417.20207 or 16.0.14334.20906 or 16.0.17932.20976; Microsoft PowerPoint 2016 → 16.0.5569.1000.
  4. If you can’t update immediately, temporarily reduce exposure by avoiding opening Office documents from unexpected sources (especially email attachments/links) until patching is completed.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High

Weaknesses

Affected Products

and 6 more affected products View all →

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

3

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