CVE-2026-47328

Name: CVE-2026-47328
Creator: NVD / NIST
Published: 2026-05-28T19:16:40.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.09%

Last modified Jun 17, 2026

CVE-2026-47328 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.. EPSS estimates a 0.09% chance of exploitation in the next 30 days.

Description

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.09%

0.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-590

Affected Software

Vendor	Product	Versions
Canonical	Ubuntu Linux	24.04
Canonical	Ubuntu Linux	25.10
Canonical	Ubuntu Linux	26.04

References

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247facPatch

Timeline

Published: May 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-47328?

How severe is CVE-2026-47328?

CVE-2026-47328 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.09% probability of exploitation in the next 30 days.

How do I fix CVE-2026-47328?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-47328?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST