Dashboard / CVE-2026-116776

CVE-2026-116776

HIGH
MEDIUM Priority: 0.01 BB Relevance: 24/100
Published: 2026-10-28 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity Integ. Impact

CVSS Vector Breakdown

AV: Physical
AC: Low
PR: High
UI: Passive
S: X
AT: None
VC: None
VI: High
VA: High

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(), &sector, 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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
n-romanovich usb-test < 1.1.5

References & Advisories (3)

Bug Bounty Relevance

24 / 100
✓ Low complexity

CVSS Score

7.0 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.18%
Raw Score 0.001770
Percentile 7.3%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →

External Links