Sensitive-data disclosure to remote attackers
Published Sep 12, 2023 · Updated Oct 30, 2025
Improper input validation in affected Microsoft Word and Office editions allows remote attackers to disclose sensitive data via unspecified vectors. Microsoft has not published the affected parser, data field, or invalid operation that causes the disclosure. Exploitation requires user interaction, and the reported effect is limited to confidentiality rather than data modification or service interruption.
Summary
What happened
Improper input validation in affected Microsoft Word and Office editions allows remote attackers to disclose sensitive data via unspecified vectors. Microsoft has not published the affected parser, data field, or invalid operation that causes the disclosure. Exploitation requires user interaction, and the reported effect is limited to confidentiality rather than data modification or service interruption.
The record
- CVE
- CVE-2023-36761
- Published
- Sep 12, 2023
- Updated
- Oct 30, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office 2019
- Classifications
- CWE-20
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 12, 2023Exploitation reportedCISA Known Exploited Vulnerabilities Catalog listing
- Sep 12, 2023CVE publishedPublication date reported by the CVE source.
- Oct 30, 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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- CISA Known Exploited Vulnerabilities Catalog listingknown exploited catalog
Technologies
Your stack
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Your stack
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