AUGUST 4, 2026
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Case File

CVE-2025-40117

HIGH · CVSS 7.8 EPSS 0.14%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-11-12 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Linux.

CVE
CVE-2025-40117
Severity
HIGH
CVSS
7.8
EPSS
0.14%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: misc: pci_endpoint_test: Fix array underflow in pci_endpoint_test_ioctl() Commit eefb83790a0d ("misc: pci_endpoint_test: Add doorbell test case") added NO_BAR (-1) to the pci_barno enum which, in practical terms, changes the enum from an unsigned int to a signed int. If the user passes a negative number in pci_endpoint_test_ioctl() then it results in an array underflow in pci_endpoint_test_bar().