CVE-2025-39952

HIGH EPSS 5.0%
Published Oct 4, 20259mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Oct 4, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: avoid buffer overflow in WID string configuration Fix the following copy overflow warning identified by Smatch checker. drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame() error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537) This patch introduces size check before accessing the memory buffer. The checks are base on the WID type of received data from the firmware. For WID string configuration, the size limit is determined by individual element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field of 'struct wilc_cfg_str'.

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
5.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-787 Out-of-bounds Write Memory Safety

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥4.2  –  <6.6.108
linuxlinux_kernel*≥6.7  –  <6.12.49
linuxlinux_kernel*≥6.13  –  <6.16.9
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any
linuxlinux_kernel6.17any

References 4

  • git.kernel.org https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5
    Patch