SEPTEMBER 8, 2026
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Case File

CVE-2026-63957

UNKNOWN · CVSS N/A EPSS 0.21%

Source: NVD + CISA KEV + EPSS · Published 2026-07-19 · Last synced 2026-08-18

CyberRota Analysis

AI-Generated

The vulnerability in the Linux kernel affects the USB serial subsystem, specifically in the "safe" mode of the safe_serial driver, where a malicious device can report a smaller bulk-out buffer size, leading to potential user-controlled memory corruption. This could allow an attacker to exploit the system by manipulating memory allocation, potentially leading to arbitrary code execution or system instability. Linux system administrators and developers utilizing USB serial interfaces should prioritize applying the patch to mitigate this risk.

CVE
CVE-2026-63957
Severity
UNKNOWN
CVSS
N/A
EPSS
0.21%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: safe_serial: fix memory corruption with small endpoint Make sure that the bulk-out buffer size is at least eight bytes to avoid user-controlled slab corruption in "safe" mode should a malicious device report a smaller size.