CVE-2026-23315
Out-of-Bounds Access in Linux mt76 WiFi Driver Fixed
Publication date: 2026-03-25
Last updated on: 2026-04-23
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | 5.10 |
| linux | linux_kernel | From 6.19 (inc) to 6.19.7 (exc) |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | From 5.10.1 (inc) to 6.1.167 (exc) |
| linux | linux_kernel | From 6.13 (inc) to 6.18.17 (exc) |
| linux | linux_kernel | From 6.2 (inc) to 6.6.130 (exc) |
| linux | linux_kernel | From 6.7 (inc) to 6.12.77 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Linux kernel's wifi driver mt76, specifically in the function mt76_connac2_mac_write_txwi_80211. It involves a possible out-of-bounds (oob) access due to insufficient checking of the frame length before accessing management fields.
The fix involves adding a check on the frame length to ensure safe access to the management fields, preventing potential out-of-bounds memory access.
How can this vulnerability impact me? :
A possible out-of-bounds access vulnerability can lead to memory corruption, which might cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update the Linux kernel to a version that includes the fix for the mt76 driver, specifically addressing the out-of-bounds access in mt76_connac2_mac_write_txwi_80211.
This fix involves checking the frame length before accessing management fields to avoid possible out-of-bounds access.