Kernel-memory disclosure via undisclosed filter-driver flaw
Published Jan 12, 2021 · Updated Oct 8, 2024
Information disclosure in the Projected File System filter driver in affected Microsoft Windows releases allows local users to read kernel memory. Microsoft has not published the vulnerable code path or the operation by which the filter driver exposes memory. Exploitation requires local low-privilege access and yields confidentiality loss only, with no reported integrity or availability impact.
Summary
What happened
Information disclosure in the Projected File System filter driver in affected Microsoft Windows releases allows local users to read kernel memory. Microsoft has not published the vulnerable code path or the operation by which the filter driver exposes memory. Exploitation requires local low-privilege access and yields confidentiality loss only, with no reported integrity or availability impact.
The record
- CVE
- CVE-2021-1672
- Published
- Jan 12, 2021
- Updated
- Oct 8, 2024
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 12, 2021CVE publishedPublication date reported by the CVE source.
- Oct 8, 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?
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- Affected versionversion=10.0.0 <publication
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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