CVE-2026-31617

high Red Hat
CVSS v3 Base Score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 95% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: April 24, 2026 (20 days ago)
Last Modified: April 24, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's USB Network Control Model (NCM) gadget driver. A malicious USB host could exploit an integer underflow vulnerability when processing Network Transfer Block (NTB) headers. This allows the host to manipulate internal data pointers, causing adjacent kernel memory to be copied into network buffers. This issue can lead to information disclosure from the kernel.

CWE

CWE-191

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org