What is CVE-2026-46125?

CVE-2026-46125 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 6.0 onward and patched in 6.1.176, 6.6.140, 6.12.88 and others. CVE-2026-46125 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46125?

CVE-2026-46125 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-46125?

Yes, CVE-2026-46125 has been patched. Fixed versions include 6.1.176, 6.6.140, 6.12.88 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46125 actively exploited?

CVE-2026-46125 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2026-46125

High

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: remove station if connection prep fails If connection preparation fails for MLO connections, then the interface is completely reset to non-MLD. In this case, we must not keep the station since it's related to the link of the vif being removed. Delete an existing station. Any "new_sta" is already being removed, so that doesn't need changes. This fixes a use-after-free/double-free in debugfs if that's enabled, because a vif going from MLD (and to MLD, but that's not relevant here) recreates its entire debugfs.

Package Linux Kernel

Published 2026-05-28

Last modified 2026-07-15

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2026-46125 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.0 and later are affected. Fixed in 6.1.176, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1 and their respective stable series.

Affected from

≥ 6.0

Fixed in

✓ 6.1.176 6.1.x ✓ 6.6.140 6.6.x ✓ 6.12.88 6.12.x ✓ 6.18.30 6.18.x ✓ 7.0.7 7.0.x ✓ 7.1

References

19 total

Kernel Git
https://git.kernel.org/stable/c/18fed0a209500bfea5c4c08609ec93855e4e500b

Patch
Kernel Git
https://git.kernel.org/stable/c/1c2b72ea89882aeb948340498391e69c58d466f1

Patch
Kernel Git
https://git.kernel.org/stable/c/283fc9e44ff5b5ac967439b4951b80bd4299f4e4

Patch
Kernel Git
https://git.kernel.org/stable/c/9e28654f79f443bca9b29ff3ae7cf18abfba58a0

Patch
Kernel Git
https://git.kernel.org/stable/c/afcbaed89cdc1a001b43270cbf5394bb4804270a

Patch

Showing 5 of 19 references View all on NVD

Details

CVE ID CVE-2026-46125

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-07-15

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46125?

CVE-2026-46125 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 6.0 onward and has been patched in 6.1.176, 6.6.140, 6.12.88 and others. CVE-2026-46125 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46125?

CVE-2026-46125 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-46125?

Yes. CVE-2026-46125 has been patched. Fixed versions include 6.1.176, 6.6.140, 6.12.88 and others. If you are running Linux kernel 6.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46125 actively exploited?

No. CVE-2026-46125 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.