TI-2025-26624 Aliases CVE-2025-39952 GHSA-prff-pf2c-76w4

wifi: wilc1000: avoid buffer overflow in WID string configuration

LOW 38CWE-787Published 2025-10-04 · Updated 2026-10-30

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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'.

Why it matters now

EPSS 0.00293 22nd percentileScored 2026-11-07

Fix Fixed Linux (Linux): 6.1.191, 6.6.108, 6.12.49 +2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Linux	Linux	4.2 and later	6.1.191, 6.6.108, 6.12.49, 6.16.9, 6.17	Patch available	CNA

Linux VendorLinux Affected 4.2 and later Fixed in 6.1.191, 6.6.108, 6.12.49, 6.16.9, 6.17 Patch available CNA

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:o:linux:linux_kernel::::::::	4.2 to before 6.6.108; 6.7 to before 6.12.49; 6.13 to before 6.16.9	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc1::::::	6.17 rc1	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc2::::::	6.17 rc2	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc3::::::	6.17 rc3	Vulnerable	Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc4::::::	6.17 rc4	Vulnerable	Linux

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.2 to before 6.6.108; 6.7 to before 6.12.49; 6.13 to before 6.16.9 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* Versions 6.17 rc1 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* Versions 6.17 rc2 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* Versions 6.17 rc3 Vulnerable ·Linux
cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* Versions 6.17 rc4 Vulnerable ·Linux

Remediation

Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.108, 6.12.49, 6.16.9, 6.17

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

Not affected: 5 products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2025-39952
2026-10-03 Alias added: GHSA-prff-pf2c-76w4
2026-10-30 Fix available: Linux/Linux@5f1578a8684794318a60a022cedbffaa3dc444ce, Linux/[email protected] · CNA
2026-10-30 1 new reference · CNA
2026-11-07 Affected versions changed · Red Hat

References

Patch 4

Other 1

https://git.kernel.org/stable/c/5f1578a8684794318a60a022cedbffaa3dc444ce

TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3

See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences