Local information disclosure through undisclosed flaw
Published Apr 13, 2021 · Updated Aug 3, 2024
Information disclosure in affected Microsoft Excel and Office products allows local users to obtain information after user interaction. Microsoft has not published the component, input, or operation responsible for the disclosure. Exploitation requires local access and user interaction; the disclosed consequence is limited to obtaining information.
Summary
What happened
Information disclosure in affected Microsoft Excel and Office products allows local users to obtain information after user interaction. Microsoft has not published the component, input, or operation responsible for the disclosure. Exploitation requires local access and user interaction; the disclosed consequence is limited to obtaining information.
The record
- CVE
- CVE-2021-28456
- Published
- Apr 13, 2021
- Updated
- Aug 3, 2024
- Vendor
- Microsoft
- Product
- Microsoft Office 2019
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 13, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record 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
No sourced classifications are available.
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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