CVE-2022-50131

HIGH EPSS 7.9%
Published Jun 18, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: prevent a buffer overflow in mcp_smbus_write() Smatch Warning: drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() '&mcp->txbuf[5]' too small (59 vs 255) drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() 'buf' too small (34 vs 255) The 'len' variable can take a value between 0-255 as it can come from data->block[0] and it is user data. So add an bound check to prevent a buffer overflow in memcpy().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
7.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.7  –  <5.10.137
linuxlinux_kernel*≥5.11  –  <5.15.61
linuxlinux_kernel*≥5.16  –  <5.18.18
linuxlinux_kernel*≥5.19  –  <5.19.2

References 5

  • git.kernel.org https://git.kernel.org/stable/c/3c0f8a59f2cc8841ee6653399a77f4f3e6e9a270
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62ac2473553a00229e67bdf3cb023b62cf7f5a9a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6402116a7b5ec80fa40fd145a80c813019cd555f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66c8e816f2f2ca4a61b406503bd10bad1b35f72f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/91443c669d280937968f0aa4edefa741cfe35314
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/3c0f8a59f2cc8841ee6653399a77f4f3e6e9a270
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/62ac2473553a00229e67bdf3cb023b62cf7f5a9a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6402116a7b5ec80fa40fd145a80c813019cd555f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66c8e816f2f2ca4a61b406503bd10bad1b35f72f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/91443c669d280937968f0aa4edefa741cfe35314
    Patch