CVE-2026-58583

FluxInk (formerly Sunia SPB Peripheral) Color Management Driver (TcnPeripheral64.sys) 1.0.7.2 allows local privilege escalation for a standard user account via arbitrary physical memory mapping at \Device\PhysicalMemory. Fixed in version 1.0.7.6. The fixed driver is currently available in the Windows 11 25H2 HLK (Hardware Lab Kit). The fixed driver may be available through Windows Update or from Lenovo directly.

Score

CVSS 4.0 8.4 High

Status

Awaiting Analysis - 9119a7d8-5eab-497f-8521-727c672e3725

Published

2026-07-07

Last modified

2026-10-25

Weaknesses

CWE-269

Affected products

• Color Management Driver (Fluxink)

References

• https://github.com/b3s3da/TcnPeripheral64_PoC/security/advisories/GHSA-x4rw-h4v2-v83h
• https://github.com/b3s3da/TcnPeripheral64_PoC
• https://www.cve.org/CVERecord?id=CVE-2026-58583
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-188-01.json