Answer in brief
CVE-2025-39952 records a High severity (CVSS 8.8) vulnerability in wifi: wilc1000: avoid buffer overflow in WID string configuration. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c5c77ba18ea66aa05441c71e38473efb787705a4 <6085291a1a5865d4ad70f0e5812d524ebd5d1711 || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <2203ef417044b10a8563ade6a17c74183745d72e || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <ae50f8562306a7ea1cf3c9722f97ee244f974729 || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <fe9e4d0c39311d0f97b024147a0d155333f388b5 | 6085291a1a5865d4ad70f0e5812d524ebd5d1711, 2203ef417044b10a8563ade6a17c74183745d72e, ae50f8562306a7ea1cf3c9722f97ee244f974729, fe9e4d0c39311d0f97b024147a0d155333f388b5 |
| Linux/Linuxgeneric | 4.2 | Not reported |
| Linux/Linuxgeneric | >=c5c77ba18ea66aa05441c71e38473efb787705a4 <5f1578a8684794318a60a022cedbffaa3dc444ce || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <6085291a1a5865d4ad70f0e5812d524ebd5d1711 || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <2203ef417044b10a8563ade6a17c74183745d72e || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <ae50f8562306a7ea1cf3c9722f97ee244f974729 || >=c5c77ba18ea66aa05441c71e38473efb787705a4 <fe9e4d0c39311d0f97b024147a0d155333f388b5 | 5f1578a8684794318a60a022cedbffaa3dc444ce, 6085291a1a5865d4ad70f0e5812d524ebd5d1711, 2203ef417044b10a8563ade6a17c74183745d72e, ae50f8562306a7ea1cf3c9722f97ee244f974729, fe9e4d0c39311d0f97b024147a0d155333f388b5 |
Published upstream
Oct 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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'.
Quoted source text, attributed separately from HOL analysis.