CVE-2026-20794

Buffer Overflow in Intel Data Center Graphics Driver for VMware ESXi Leading to Local Privilege Escalation

Published May 12, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
Buffer overflow for the Intel(R) Data Center Graphics Driver for VMware ESXi software before version 2.0.2 within Ring 1: Device Drivers may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. 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 (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.

Analysis

AI-generated

Technical impact

A buffer overflow exists in the Intel Data Center Graphics Driver for VMware ESXi that allows an attacker with local system access to overwrite critical memory structures in ring‑1 device drivers. The vulnerability can be exploited with a low complexity local attack and no user interaction, leading to escalation of privilege so that the attacker can gain full control of the system. The impact on confidentiality, integrity, and availability is high, as the attacker can modify data, tamper with system state, and potentially render the host inoperable.

Affected Systems

The driver is present in Intel Data Center Graphics Driver for VMware ESXi software. Versions prior to 2.0.2 are affected; any system running the driver before that release is vulnerable.

Risk and Exploitability

The CVSS score of 9.3 indicates very high severity. The EPSS score is not available, so the current exploitation probability is unknown, but the vulnerability is already known to be possible via local access. The vulnerability is not listed in CISA KEV, but its high CVSS and local exploit potential warrant immediate attention. Exploitation requires local access and a privileged system user; that tag indicates an attacker must have the ability to load or interface with the driver. Therefore, restricting privileged access or patching is critical.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply Intel’s latest driver update (version 2.0.2 or later) to eliminate the buffer overflow
  • Limit the set of users who can load or interact with the graphics driver to minimize local attack surface
  • Continuously monitor privileged process activity for signs of abnormal escalation or unintended driver behavior

Generated by OpenCVE AI on May 12, 2026 at 17:24 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Intel
Intel data Center Graphics Driver For Vmware Esxi Software
Vendors & Products Intel
Intel data Center Graphics Driver For Vmware Esxi Software
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Buffer Overflow in Intel Data Center Graphics Driver for VMware ESXi Leading to Local Privilege Escalation
Type Values Removed Values Added
Description Buffer overflow for the Intel(R) Data Center Graphics Driver for VMware ESXi software before version 2.0.2 within Ring 1: Device Drivers may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable local code execution. 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 (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.
Weaknesses CWE-120
References
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses
  • CWE-120

    Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Sources

Status
PUBLISHED
Assigner
intel
Published
Updated
May 13, 2026, 3:58 AM
Reserved
Dec 3, 2025, 5:59 PM
Status
Awaiting Analysis
Published
May 12, 2026, 5:16 PM
Modified
Jun 17, 2026, 10:17 AM