Strix
64.9K

CVE-2026-68199

HIGHCVSS 8.8/10EPSS 0.40%

Last modified

CVE-2026-68199 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
0.40%

33.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= bdcd81707973cf8aa9305337166f8ee842a050d4, < c8e3ca7954d8233fbc54bd370c1827670f43c538; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < f480d9910fcfe326db3a6281df80e83af347193e; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < 67bc9af4f41f2bdba20404fbd753b2a1bd6dd352; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < d4558c140782180e2c80a7588a4af9f8675adfc4; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < 5a65fd4722416061698b0a3277222381efbc4882; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < 58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9c; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < cec0a487cf38ac1f9bca240ffe8a94c5014b72f2; >= bdcd81707973cf8aa9305337166f8ee842a050d4, < 44126b6994eeb28f2103b638e698f40a1244f327
LinuxLinux3.2

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-68199?
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.
How severe is CVE-2026-68199?
CVE-2026-68199 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.
How do I fix CVE-2026-68199?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-68199?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST