CVE-2026-46271
Wi-Fi WoW Offload Crash in Ath12k Driver
Publication date: 2026-06-03
Last updated on: 2026-06-03
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| qualcomm | wcn7850 | From 1.0_V2.0_SILICONZ-1 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Linux kernel's wifi driver for ath12k devices. Specifically, when a multi-link connection is used, the WCN7850 firmware crashes because Wake on Wireless (WoW) offloads are enabled on both the primary and secondary links. The fix involves enabling WoW offloads only on the primary link to prevent the firmware crash.
How can this vulnerability impact me? :
If you are using a device with the WCN7850 firmware and a multi-link wifi connection, this vulnerability can cause the firmware to crash. This could lead to loss of wireless connectivity or instability in your network connection.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, ensure that WoW (Wake on Wireless) offloads are enabled only on the primary link in multi-link connections for devices using the WCN7850 firmware.
This can be achieved by updating the Linux kernel to a version that includes the fix where WoW offloads are restricted to the primary link, preventing firmware crashes.