CVE WatchNov 10, 2026

CVE-2026-63540

Heap-based buffer overflow for some Hyperscan before version v5.4.2.1 within Ring 3: User Applications may allow a denial of service. Unpriv

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

0-100

Published: Nov 10, 2026 · Last modified: Nov 10, 2026 · CWE-122

EPSS · 30d

Not enough EPSS history yet.

Technical description

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 not 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.

Official references

intel.comhttps://intel.com/content/www/us/en/security-center/advisory/intel-sa-01511.html

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