CVE-2026-68199

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-68199

Key Details

CVE	CVE-2026-68199
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is adjacent; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

wifi: ath6kl: fix OOB access from firmware ADDBA window size

aggr_recv_addba_req_evt() logs a debug message when the firmware-supplied

win_sz is outside [AGGR_WIN_SZ_MIN, AGGR_WIN_SZ_MAX] but does not

return. The out-of-range win_sz is then used in TID_WINDOW_SZ() to

compute a kzalloc size and stored in rxtid->hold_q_sz, leading to

zero-size or overflowed allocations and subsequent out-of-bounds access.

Clean up any previously active aggregation session for the TID first,

then return early when win_sz is out of the valid range, instead of

proceeding with a broken allocation size. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-68199
CVE	https://www.cve.org/CVERecord?id=CVE-2026-68199

Source

Reference

NVD

CVE