Local information disclosure via out-of-bounds read
Published Oct 14, 2025 · Updated Oct 14, 2025
Out-of-bounds read in Microsoft Office Excel allows attackers to disclose information via a crafted workbook opened by a user. Microsoft has not disclosed the affected Excel parser or the unchecked operation that reads beyond its intended memory boundary. The attack requires the targeted user to open the file locally; no integrity impact is reported, and the exact disclosed data is unspecified.
Summary
What happened
Out-of-bounds read in Microsoft Office Excel allows attackers to disclose information via a crafted workbook opened by a user. Microsoft has not disclosed the affected Excel parser or the unchecked operation that reads beyond its intended memory boundary. The attack requires the targeted user to open the file locally; no integrity impact is reported, and the exact disclosed data is unspecified.
The record
- CVE
- CVE-2025-59232
- Published
- Oct 14, 2025
- Updated
- Oct 14, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 14, 2025CVE publishedPublication date reported by the CVE source.
- Oct 14, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.102.25101223
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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