CVE-2026-68199CWE-20

CVE-2026-68199

High · published August 10, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
31.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00382 · 31.0th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-08-10T17:20Z
References (8)
EPSS history
Timeline
  • 10 AUG 12:00Z
    wifi: ath6kl: fix OOB access from firmware ADDBA window size
    cvelistv5