CVE-2026-21399: Buffer Overflow
Heap-based buffer overflow for the Intel(R) Open Volume Kernel Library (Intel(R) Open VKL) library maintained by intel(R) before version 2.0.2 within Ring 3: User Applications may allow a denial of service. System software adversary with an authenticated 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 no 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-21399?
CVE-2026-21399 has a risk rating of 30, indicating a notable level of severity.
How do I fix CVE-2026-21399?
To remediate CVE-2026-21399, update the Intel(R) Open Volume Kernel Library to version 2.0.2 or later.
What types of attacks can exploit CVE-2026-21399?
CVE-2026-21399 can be exploited in a denial of service attack by an authenticated system software adversary.
What is a heap-based buffer overflow as seen in CVE-2026-21399?
A heap-based buffer overflow in CVE-2026-21399 allows for overwriting memory in the heap, potentially leading to application crashes or other malicious actions.
Which software is affected by CVE-2026-21399?
CVE-2026-21399 affects the Intel(R) Open Volume Kernel Library (Intel(R) Open VKL) prior to version 2.0.2.