Information disclosure via out-of-bounds read
Published Nov 11, 2025 · Updated Feb 13, 2026
An out-of-bounds read in Microsoft Excel across affected Office releases allows local users to disclose information through crafted content. Microsoft identifies the flaw as an Excel out-of-bounds read but has not disclosed the parser, file format, or exact unchecked read operation. Exploitation requires a user to open the content, and success exposes process memory while also permitting an application or service interruption.
Summary
What happened
An out-of-bounds read in Microsoft Excel across affected Office releases allows local users to disclose information through crafted content. Microsoft identifies the flaw as an Excel out-of-bounds read but has not disclosed the parser, file format, or exact unchecked read operation. Exploitation requires a user to open the content, and success exposes process memory while also permitting an application or service interruption.
The record
- CVE
- CVE-2025-62202
- Published
- Nov 11, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 11, 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 <16.103.25110922
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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