CVE-2026-116776 USB Test - Buffer Overflow

USB Test < 1.1.5 contains a heap buffer overflow caused by trusting DISK_GEOMETRY.BytesPerSector without validation in getSectorSize(), letting physically connected malicious USB devices cause denial of service or arbitrary code execution, exploit requires physical USB device connection.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Buffer Overflow
Impact
Remote Code Execution, Denial Of Service
CVSS vector
CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:P/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
28 October 2026
Updated
29 October 2026
Weakness
CWE-122

Vendor fix

Update to version 1.1.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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