Information disclosure via out-of-bounds presentation read
Published Sep 8, 2026 · Updated Sep 9, 2026
Out-of-bounds read in Microsoft Office PowerPoint allows remote attackers to disclose information through a crafted presentation. Microsoft has not disclosed the affected parser or the missing bounds check that causes PowerPoint to read beyond the intended buffer. Exploitation requires a user to open the presentation, and the reported consequence is disclosure of process memory without modification or service interruption.
Summary
What happened
Out-of-bounds read in Microsoft Office PowerPoint allows remote attackers to disclose information through a crafted presentation. Microsoft has not disclosed the affected parser or the missing bounds check that causes PowerPoint to read beyond the intended buffer. Exploitation requires a user to open the presentation, and the reported consequence is disclosure of process memory without modification or service interruption.
The record
- CVE
- CVE-2026-72977
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Microsoft PowerPoint 2016
- Classifications
- CWE-20, CWE-125, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 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.
Weakness, pattern, technique
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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