CVE-2026-21399CWE-122

CVE-2026-21399

Medium · published August 11, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
1.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
CVSS v4.0
Not supplied
EPSS
0.00107 · 1.1th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2026-08-11T21:17Z
Affected products (1)
ProductVersionsFixed in
intel/open_vkl< 2.0.22.0.2
References (1)
EPSS history
Timeline
  • 11 AUG 16:27Z
    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…
    cvelistv5