CVE-2026-40424
Received Received - Intake

Out-of-Bounds Read in Intel Hyperscan

Publication date: 2026-11-10

Last updated on: 2026-11-10

Assigner: Intel Corporation

Description
Out-of-bounds read for some Hyperscan before version v5.4.2.1 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (none) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

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Meta Information

Published
2026-11-10
Last Modified
2026-11-10
Generated
2026-11-10
AI Q&A
2026-11-10
EPSS Evaluated
N/A
NVD
CVE-2026-40424
EUVD
EUVD-2026-121650

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel hyperscan to 5.4.2.1 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-125 The product reads data past the end, or before the beginning, of the intended buffer.

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Executive Summary

This is an out-of-bounds read vulnerability in Hyperscan versions before v5.4.2.1. It allows an unauthenticated attacker with local access to cause a denial of service by exploiting low-complexity conditions. The attack does not require special internal knowledge or user interaction.

Impact Analysis

The vulnerability may lead to system crashes or instability, resulting in denial of service. It could also potentially expose some system information, though integrity remains unaffected. Availability impact is high, while confidentiality and integrity impacts are low or none.

Mitigation Strategies

Update Hyperscan to version v5.4.2.1 or later to address the out-of-bounds read vulnerability. Apply patches promptly as this issue may lead to denial of service with low complexity attacks.

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