Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.2, < 6.6.108 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72ePatch
- https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711Patch
- https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729Patch
- https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5Patch
FAQ
What is CVE-2025-39952?
CVE-2025-39952 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 che...
How severe is CVE-2025-39952?
CVE-2025-39952 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-39952?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.