Memory disclosure via buffer over-read
Published Sep 9, 2025 · Updated Sep 9, 2025
Buffer over-read in Microsoft Office Excel allows local users to disclose memory contents through user-assisted local exploitation. Microsoft has not published the affected parser or memory-read operation beyond identifying an out-of-bounds buffer read. Exploitation requires user interaction, and the published impact is limited to reading information from process memory.
Summary
What happened
Buffer over-read in Microsoft Office Excel allows local users to disclose memory contents through user-assisted local exploitation. Microsoft has not published the affected parser or memory-read operation beyond identifying an out-of-bounds buffer read. Exploitation requires user interaction, and the published impact is limited to reading information from process memory.
The record
- CVE
- CVE-2025-54901
- Published
- Sep 9, 2025
- Updated
- Sep 9, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-126
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 9, 2025CVE publishedPublication date reported by the CVE source.
- Sep 9, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=N/A
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
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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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