Information disclosure via improper input validation
Published Aug 11, 2026 · Updated Aug 25, 2026
Information disclosure in Microsoft Office PowerPoint allows local users to read sensitive data via unspecified local vectors. Microsoft has disclosed only that PowerPoint improperly validates input; no public advisory, CNA reference, or patch diff retrieved for CVE-2026-70313 identifies the affected parser, file format field, or read path that mishandles untrusted data. The published CVSS 3.1 metrics indicate local reachability with user interaction, and the public record supports disclosure impact only despite Microsoft's legacy title labeling it a remote code execution vulnerability.
Summary
What happened
Information disclosure in Microsoft Office PowerPoint allows local users to read sensitive data via unspecified local vectors. Microsoft has disclosed only that PowerPoint improperly validates input; no public advisory, CNA reference, or patch diff retrieved for CVE-2026-70313 identifies the affected parser, file format field, or read path that mishandles untrusted data. The published CVSS 3.1 metrics indicate local reachability with user interaction, and the public record supports disclosure impact only despite Microsoft's legacy title labeling it a remote code execution vulnerability.
The record
- CVE
- CVE-2026-70313
- Published
- Aug 11, 2026
- Updated
- Aug 25, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-20
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 11, 2026CVE publishedPublication date reported by the CVE source.
- Aug 25, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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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