Vulnerability Description
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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/b3s3da/TcnPeripheral64_PoC
- https://github.com/b3s3da/TcnPeripheral64_PoC/security/advisories/GHSA-x4rw-h4v2
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/
- https://www.cve.org/CVERecord?id=CVE-2026-58583
FAQ
What is CVE-2026-58583?
CVE-2026-58583 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 \De...
How severe is CVE-2026-58583?
CVE-2026-58583 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-58583?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.