---
cve: "CVE-2026-68196"
severity: "HIGH"
cvss: 8.3
epss: "0.4%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-08-10 12:00:14"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T21:47:05+02:00"
---

# CVE-2026-68196

> 8.3 HIGH

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

wifi: wilc1000: validate assoc response length before subtracting header

wilc_parse_assoc_resp_info() computes the trailing IE length as

	ies_len = buffer_len - sizeof(*res);

without first checking that buffer_len is at least sizeof(struct
wilc_assoc_resp) (6 bytes). buffer_len is the length reported for a
received association response (host_int_parse_assoc_resp_info() passes
hif_drv->assoc_resp / assoc_resp_info_len straight in) and must be
validated before the driver accesses the fixed header.

For a frame shorter than the 6-byte fixed header, the subtraction wraps.
For a four-byte response the result is truncated to a u16 ies_len of
65534, so kmemdup() then attempts to copy 65534 bytes starting at
buffer + sizeof(*res), beyond the valid association-response data
(CWE-125). A response shorter than four bytes can also cause an
out-of-bounds read of res->status_code at offsets 2 and 3.

Reject frames too short to hold the fixed header before touching the
header or computing ies_len. Also set the connection status to a failure
on this path: the caller falls through to a
"conn_info->status == WLAN_STATUS_SUCCESS" check after the parser
returns, so leaving the status untouched could let a malformed short
response be treated as a successful association.

## CVSS-Vektor

```
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Benachbart | warn |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Hoch | bad |

## Schwachstellen-Klasse

- **CWE-125** — Out-of-bounds Read
  The product reads data past the end, or before the beginning, of the intended buffer.

## Angriffsmuster (CAPEC)

- [CAPEC-540 — Overread Buffers](https://capec.mitre.org/data/definitions/540.html) _(Severity: High)_

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.265
- Kernel ≥ 5.15.216
- Kernel ≥ 6.1.183
- Kernel ≥ 6.6.148
- Kernel ≥ 6.12.101
- Kernel ≥ 6.18.42
- Kernel ≥ 7.1.6

## Referenzen

- <https://git.kernel.org/stable/c/d79b92417f33424ff23dad76716ed8f2cefb1083>
- <https://git.kernel.org/stable/c/b81d0ea9e1daa215b3da68c1f4f6fb07940c2f6a>
- <https://git.kernel.org/stable/c/8d50acf5420de0c4da99c2d634731c9d3164a755>
- <https://git.kernel.org/stable/c/584c8954ad55f8b09b475be6db710fe40ceb988c>
- <https://git.kernel.org/stable/c/4d410320e8ae5933e651660c9fadc1d380309e23>
- <https://git.kernel.org/stable/c/e511e93abd6eeedcd5b3c55516241f414fbde64a>
- <https://git.kernel.org/stable/c/8ccdf8c8de87a9580df37c3c1ec53ba88cedef65>
- <https://git.kernel.org/stable/c/4c4c97b60a5e978121d9ee8cb0ab3916e5d6a8de>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-68196) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_