Fuji Electric Tellus pcid64 Driver Exposed Dangerous Method Local Privilege Escalation Vulnerability

July 15th, 2026
ZDI-26-439 ZDI-CAN-27670

CVE ID

CVE-2026-8108

CVSS Score

7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Fuji Electric

Affected Products

Tellus

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on affected installations of Fuji Electric Tellus. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within calls to methods in the pcid64 driver. The issue results from exposed dangerous functions. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

Additional Details

Fuji Electric has issued an update to correct this vulnerability. More details can be found at:
https://www.cisa.gov/news-events/ics-advisories/icsa-26-132-01

Disclosure Timeline

  • 2025-09-11 - Vulnerability reported to vendor
  • 2026-07-15 - Coordinated public release of advisory
  • 2026-07-15 - Advisory Updated

Credit

김명규

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