Intel Hyperscan 5.4.1 buffer overflow

Summaryinfo

A vulnerability was found in Intel Hyperscan. It has been classified as problematic. This affects an unknown function. The manipulation leads to buffer overflow. This vulnerability is documented as CVE-2026-34017. The attack needs to be performed locally. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Intel Hyperscan. This issue affects an unknown code block. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer. Impacted is availability. The summary by CVE is:

Heap-based buffer overflow 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 passive user interaction. The potential vulnerability may impact the confidentiality (none), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.

It is possible to read the advisory at intel.com. The identification of this vulnerability is CVE-2026-34017 since 04/15/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/10/2026).

Upgrading to version 5.4.2.1 eliminates this vulnerability.

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Productinfo

Vendor

• Intel

Name

• Hyperscan

Version

• 5.4.1

License

• commercial

Website

• Vendor: https://www.intel.com/

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