Information disclosure via undisclosed out-of-bounds read
Published Jul 8, 2025 · Updated Feb 13, 2026
Out-of-bounds read in Microsoft Office Excel allows local users to disclose information after required user interaction. Microsoft has not published the affected Excel parser, file format, or invalid bounds operation that causes the read beyond a memory object's boundary. Exploitation requires local access and user interaction, and the published record reports no ability to modify data or interrupt service.
Summary
What happened
Out-of-bounds read in Microsoft Office Excel allows local users to disclose information after required user interaction. Microsoft has not published the affected Excel parser, file format, or invalid bounds operation that causes the read beyond a memory object's boundary. Exploitation requires local access and user interaction, and the published record reports no ability to modify data or interrupt service.
The record
- CVE
- CVE-2025-48812
- Published
- Jul 8, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 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 <16.99.25071321
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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