{"cve":"CVE-2025-39952","nvd":{"published":"2025-10-04T08:15:48.507","modified":"2026-10-19T21:10:00.160","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: avoid buffer overflow in WID string configuration\n\nFix the following copy overflow warning identified by Smatch checker.\n\n drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame()\n        error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537)\n\nThis patch introduces size check before accessing the memory buffer.\nThe checks are base on the WID type of received data from the firmware.\nFor WID string configuration, the size limit is determined by individual\nelement size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field\nof 'struct wilc_cfg_str'.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e","https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711","https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729","https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-39952","score":0.00233,"percentile":0.14087,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}