CVE-2026-21399: Denial of Service in Intel(R) Open Volume Kernel Library (Intel(R) Open VKL) library maintained by intel(R)
CVE-2026-21399 is a heap-based buffer overflow vulnerability in the Intel Open Volume Kernel Library (Open VKL) prior to version 2.0.2. It allows a local, authenticated user with low attack complexity to cause a denial of service. The vulnerability impacts system availability but does not affect confidentiality or integrity significantly.
AI Analysis
Technical Summary
This vulnerability involves a heap-based buffer overflow in Intel's Open VKL library before version 2.0.2, exploitable by a local user with low privileges and no user interaction required. The flaw can lead to denial of service by crashing or destabilizing the affected system. The CVSS 4.0 base score is 6.9, reflecting medium severity with local attack vector, low complexity, and no user interaction needed. There is no indication of confidentiality or integrity compromise beyond availability impact.
Potential Impact
The primary impact is denial of service, affecting system availability. Confidentiality and integrity impacts are rated as none or low, indicating no significant data exposure or corruption. The attack requires local authenticated access but no special privileges beyond that.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
CVE-2026-21399: Denial of Service in Intel(R) Open Volume Kernel Library (Intel(R) Open VKL) library maintained by intel(R)
Description
CVE-2026-21399 is a heap-based buffer overflow vulnerability in the Intel Open Volume Kernel Library (Open VKL) prior to version 2.0.2. It allows a local, authenticated user with low attack complexity to cause a denial of service. The vulnerability impacts system availability but does not affect confidentiality or integrity significantly.
CVSS v4.0
Score 6.9medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap-based buffer overflow in Intel's Open VKL library before version 2.0.2, exploitable by a local user with low privileges and no user interaction required. The flaw can lead to denial of service by crashing or destabilizing the affected system. The CVSS 4.0 base score is 6.9, reflecting medium severity with local attack vector, low complexity, and no user interaction needed. There is no indication of confidentiality or integrity compromise beyond availability impact.
Potential Impact
The primary impact is denial of service, affecting system availability. Confidentiality and integrity impacts are rated as none or low, indicating no significant data exposure or corruption. The attack requires local authenticated access but no special privileges beyond that.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary workaround has been documented at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- intel
- Date Reserved
- 2025-12-19T04:00:14.854Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b5470bf8831d539106b98
Added to database: 08/11/2026, 16:57:20 UTC
Last enriched: 08/11/2026, 23:59:07 UTC
Last updated: 08/12/2026, 01:28:29 UTC
Views: 5
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