Vulnerability Description
USB Test is a lightweight Windows CLI utility for verifying sector integrity and detecting overreported capacity on USB flash drives. Prior to version 1.1.5, getSectorSize() in USB Test/src/driveinfo.cpp trusts DISK_GEOMETRY.BytesPerSector returned by IOCTL_DISK_GET_DRIVE_GEOMETRY without checking whether the call succeeded or enforcing size bounds. USB Test/src/drivetest.cpp uses the value for division and to size a heap buffer before memcpy(buffer.data(), §or, 8), so a physically connected malicious USB storage device can report a value below eight bytes and cause repeated out-of-bounds writes, or report zero and cause a divide-by-zero denial of service when a user starts a drive test. The heap corruption can crash the elevated application and may permit arbitrary code execution. This issue is fixed in version 1.1.5.
Related Weaknesses (CWE)
References
- https://github.com/n-romanovich/usb-test/commit/5b6caac844461024520b02337d3a541f
- https://github.com/n-romanovich/usb-test/releases/tag/release-v1.1.5
- https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3
- https://github.com/n-romanovich/usb-test/security/advisories/GHSA-cfrv-c9q2-7cr3
FAQ
What is CVE-2026-116776?
CVE-2026-116776 is a documented vulnerability. USB Test is a lightweight Windows CLI utility for verifying sector integrity and detecting overreported capacity on USB flash drives. Prior to version 1.1.5, getSectorSize() in USB Test/src/driveinfo....
How severe is CVE-2026-116776?
CVSS scoring is not yet available for CVE-2026-116776. Check NVD for updates.
Is there a patch for CVE-2026-116776?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.