Remote code execution via use-after-free
Published Sep 8, 2026 · Updated Sep 10, 2026
Use-after-free in Microsoft Office PowerPoint allows remote attackers to execute code when a user opens a crafted file. Microsoft identifies freed-memory reuse as the flaw but has not published the affected parser, object lifetime error, or triggering file structure. Exploitation requires user interaction and can execute attacker-controlled code in the user's Office process, affecting confidentiality, integrity, and availability.
Summary
What happened
Use-after-free in Microsoft Office PowerPoint allows remote attackers to execute code when a user opens a crafted file. Microsoft identifies freed-memory reuse as the flaw but has not published the affected parser, object lifetime error, or triggering file structure. Exploitation requires user interaction and can execute attacker-controlled code in the user's Office process, affecting confidentiality, integrity, and availability.
The record
- CVE
- CVE-2026-69797
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft PowerPoint 2016
- Classifications
- CWE-416, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.0.5569.1000
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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