CVE-2026-20794: Intel Data Center Graphics Driver for VMware ESXi buffer overflow

CVE-2026-20794 · Severity: info · CVSS 9.3 · Published 2026-05-12

A critical vulnerability exists in the Intel Data Center Graphics Driver for VMware ESXi, a component used to manage graphics hardware in virtualized data center environments. A local attacker with administrative privileges can exploit a buffer overflow to execute malicious code with high-level system permissions. This could lead to a complete takeover of the host system, compromising all data and virtual machines running on the affected server.

Technologies: Intel Data Center Graphics Driver for VMware ESXi. Vendors: Intel.

Quick answers

Is CVE-2026-20794 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-20794 being exploited in the wild.
How severe is CVE-2026-20794?
Informational severity, with a CVSS score of 9.3, published 12 May 2026.
Which products and versions are affected?
Intel Data Center Graphics Driver for VMware ESXi before 2.0.2.
Is there a fix for CVE-2026-20794?
A patch was published on 2026-05-12: Version 2.0.2 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-20794 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-20794?
Check whether you run Intel Data Center Graphics Driver for VMware ESXi at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A classic buffer overflow (CWE-120) exists in the Intel Data Center Graphics Driver for VMware ESXi within the Ring 1 device driver layer. The vulnerability is triggered by a lack of proper input size checking when copying data to a buffer. An attacker with high privileges (PR:H) on the local system can exploit this flaw to achieve local code execution and escalate privileges further. Successful exploitation impacts the confidentiality, integrity, and availability of both the local system and the broader environment (Subsequent impacts). Intel has released version 2.0.2 to mitigate this issue.

Affected products

  • Intel Data Center Graphics Driver for VMware ESXi before 2.0.2

Timeline

  • 2026-05-12: disclosed
  • 2026-05-12: advisory: Intel-SA-01402 published
  • 2026-05-12: patched: Version 2.0.2 released

References

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