Local privilege escalation via buffer over-read
Published Dec 9, 2025 · Updated Apr 16, 2026
Buffer over-read in Microsoft Windows Projected File System allows local users with low privileges to elevate privileges. Microsoft has not published the affected routine, the attacker-controlled input, or the operation that reads beyond the buffer boundary. Projected File System must be enabled before use; exploitation requires local low-privilege access and can compromise confidentiality, integrity, and availability without user interaction.
Summary
What happened
Buffer over-read in Microsoft Windows Projected File System allows local users with low privileges to elevate privileges. Microsoft has not published the affected routine, the attacker-controlled input, or the operation that reads beyond the buffer boundary. Projected File System must be enabled before use; exploitation requires local low-privilege access and can compromise confidentiality, integrity, and availability without user interaction.
The record
- CVE
- CVE-2025-62464
- Published
- Dec 9, 2025
- Updated
- Apr 16, 2026
- Vendor
- Microsoft
- Product
- Windows Server 2019
- Classifications
- CWE-126, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 9, 2025CVE publishedPublication date reported by the CVE source.
- Apr 16, 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=10.0.17763.0 <10.0.17763.8146
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.
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Technologies
Your stack
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Your stack
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