Local memory disclosure via out-of-bounds read
Published Jul 11, 2023 · Updated Feb 28, 2025
Out-of-bounds read in Microsoft Excel products allows local users to disclose process memory after user interaction with crafted content. Microsoft identifies the weakness but has not disclosed the affected Excel component, malformed input, or operation that reads past its buffer. Exploitation requires user interaction and affects confidentiality only, with no reported integrity or availability impact.
Summary
What happened
Out-of-bounds read in Microsoft Excel products allows local users to disclose process memory after user interaction with crafted content. Microsoft identifies the weakness but has not disclosed the affected Excel component, malformed input, or operation that reads past its buffer. Exploitation requires user interaction and affects confidentiality only, with no reported integrity or availability impact.
The record
- CVE
- CVE-2023-33162
- Published
- Jul 11, 2023
- Updated
- Feb 28, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office 2019
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 11, 2023CVE publishedPublication date reported by the CVE source.
- Feb 28, 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=19.0.0 <https://aka.ms/OfficeSecurityReleases
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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