Local denial of service via buffer overflow
Published May 12, 2026 · Updated May 12, 2026
Buffer overflow in Intel QAT Windows drivers before 1.13 allows local users to interrupt service through a Ring 3 user application. Intel has not disclosed the affected Ring 3 component, buffer, or unchecked copy operation that processes attacker-controlled input. Local users need a low-privileged authenticated account, but no user interaction; Intel has not disclosed the form or duration of the service interruption.
Summary
What happened
Buffer overflow in Intel QAT Windows drivers before 1.13 allows local users to interrupt service through a Ring 3 user application. Intel has not disclosed the affected Ring 3 component, buffer, or unchecked copy operation that processes attacker-controlled input. Local users need a low-privileged authenticated account, but no user interaction; Intel has not disclosed the form or duration of the service interruption.
The record
- CVE
- CVE-2026-20782
- Published
- May 12, 2026
- Updated
- May 12, 2026
- Vendor
- Topcon Positioning Systems, Inc.
- Product
- Intel QuickAssist Technology (Intel QAT) Driver for Windows
- Classifications
- CWE-120, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 12, 2026CVE publishedPublication date reported by the CVE source.
- May 12, 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?
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- Affected versionversion=before version 1.13
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
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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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