What is CVE-2026-46271?

CVE-2026-46271 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.16 onward and patched in 6.18.14, 6.19.4 and 7.0. CVE-2026-46271 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46271?

CVE-2026-46271 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-46271?

Yes, CVE-2026-46271 has been patched. Fixed versions include 6.18.14, 6.19.4 and 7.0. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46271 actively exploited?

CVE-2026-46271 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46271

High

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi-link connection, WCN7850 firmware crashes due to WoW offloads enabled on both primary and secondary links. Change to do it only on primary link to fix it. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00284-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1

Package Linux Kernel

Published 2026-06-03

Last modified 2026-06-05

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 6.16 and later are affected. Fixed in 6.18.14, 6.19.4, 7.0 and their respective stable series.

Affected from

≥ 6.16

Fixed in

✓ 6.18.14 6.18.x ✓ 6.19.4 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-46271 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/7379837c3f9efa576dc2d716ebfaa3a113b3112f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e042da1085d9f1686c58a4378d5840f52a36598e
Patch
Kernel patch commit
https://git.kernel.org/stable/c/e62102ac9b773bdb08475aa9ca24dea61ae98708
Patch

Details

CVE ID CVE-2026-46271

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-06-03

Modified 2026-06-05

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46271?

CVE-2026-46271 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.16 onward and has been patched in 6.18.14, 6.19.4 and 7.0. CVE-2026-46271 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46271?

CVE-2026-46271 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-46271?

Yes — CVE-2026-46271 has been patched. Fixed versions include 6.18.14, 6.19.4 and 7.0. If you are running Linux kernel 6.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46271 actively exploited?

No — CVE-2026-46271 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.