What is CVE-2026-53233?

CVE-2026-53233 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.12 onward and patched in 6.12.94, 6.18.36, 7.0.13 and others. CVE-2026-53233 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53233?

CVE-2026-53233 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-2026-53233?

Yes, CVE-2026-53233 has been patched. Fixed versions include 6.12.94, 6.18.36, 7.0.13 and others. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53233 actively exploited?

CVE-2026-53233 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-53233

High

In the Linux kernel, the following vulnerability has been resolved: netdev: fix double-free in netdev_nl_bind_rx_doit() Sashiko flags that genlmsg_reply() always consumes the skb. The error path calls nlmsg_free(rsp) so we can't jump directly to it. Let's not unbind, just propagate the error to the user. This is the typical way of handling genlmsg_reply() failures. They shouldn't happen unless user does something silly like calling the kernel with an already-full rcvbuf.

Package Linux Kernel

Published 2026-06-25

Last modified 2026-07-07

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

Weakness type

CWE-415

CVE-2026-53233 is classified as CWE-415

See CWE-415 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.12 and later are affected. Fixed in 6.12.94, 6.18.36, 7.0.13, 7.1 and their respective stable series.

Affected from

≥ 6.12

Fixed in

✓ 6.12.94 6.12.x ✓ 6.18.36 6.18.x ✓ 7.0.13 7.0.x ✓ 7.1

References

4 total

Kernel Git
https://git.kernel.org/stable/c/9b019376cbee10c4f9184d1745fa37d156e36f30

Patch
Kernel Git
https://git.kernel.org/stable/c/c299321bc6232770ce378d6fa6bc46004d2d7fdb

Patch
Kernel Git
https://git.kernel.org/stable/c/c849de7d8757a7af801fc4a4058f71d481d367f2

Patch
Kernel Git
https://git.kernel.org/stable/c/e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599

Patch

Details

CVE ID CVE-2026-53233

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-06-25

Modified 2026-07-07

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53233?

CVE-2026-53233 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.12 onward and has been patched in 6.12.94, 6.18.36, 7.0.13 and others. CVE-2026-53233 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53233?

CVE-2026-53233 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-2026-53233?

Yes. CVE-2026-53233 has been patched. Fixed versions include 6.12.94, 6.18.36, 7.0.13 and others. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53233 actively exploited?

No. CVE-2026-53233 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.