Vulnerability Report

CVE-2026-47328

Title: AppArmor Double Free / Memory Leak (Slab Corruption)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2026-47328.

CWE Category CWE-590

Published Date May 28, 2026

Modified Date Jun 09, 2026

Exploit Status Not Found

Score 6.1 CVSS v3.1

Exploit Probability (EPSS)

0.09%

Vulnerability Summary

CVE-2026-47328: 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.

Impacted Vendors

canonical 1

ubuntu 1

Reference Links

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.1

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-47328 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 09, 2026 MODIFIED

Vulnerability data updated via NVD.

June 09, 2026 MODIFIED

Vulnerability data updated via NVD.

May 29, 2026 MODIFIED

Vulnerability data updated via NVD.

May 28, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.