What is CVE-2026-47334?

CVE-2026-47334 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Deadlock flaw (CWE-833), affecting Linux kernel versions from 6.8.0 onward. CVE-2026-47334 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-47334?

CVE-2026-47334 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-47334?

No patch is currently available for CVE-2026-47334. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2026-47334 actively exploited?

CVE-2026-47334 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Deadlock (CWE-833)?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/833.html

CVE-2026-47334

Medium

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.

Package Linux Kernel

Published 2026-05-28

Last modified 2026-05-29

CVSS version 3.1

Patch available

Not yet patched

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-833

CVE-2026-47334 is a Deadlock vulnerability

What is Deadlock?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.8.0, 6.17.0, 7.0.0 and later are affected. No fixed version recorded yet.

Affected from

≥ 6.8.0 ≥ 6.17.0 ≥ 7.0.0

References

The following references provide additional information about CVE-2026-47334 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Git
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=f0e73aec23d13a9877fba096b1c2fd19f66e5313

Details

CVE ID CVE-2026-47334

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-05-29

KEV No

Patch

Not yet patched

Package linux

Frequently asked questions

What is CVE-2026-47334?

CVE-2026-47334 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Deadlock flaw (CWE-833) . It affects Linux kernel versions from 6.8.0 onward . CVE-2026-47334 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-47334?

CVE-2026-47334 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-47334?

No patch is currently available for CVE-2026-47334. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2026-47334 actively exploited?

No — CVE-2026-47334 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Deadlock (CWE-833)?

The product contains multiple threads that wait for each other to release locks, causing all threads to halt. View CWE-833 on MITRE CWE →