What is the CVSS score of CVE-2026-47327?

CVE-2026-47327 has a CVSS 3.1 base score of 3.3 (Low). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. EPSS exploitation probability: 0.0%.

Is there a patch available for CVE-2026-47327?

Yes, a patch is available for CVE-2026-47327. Update the affected software to the latest version immediately.

Ubuntu Linux CVE-2026-47327

EUVD-2026-32982 LOW

NULL Pointer Dereference (CWE-476)

2026-05-28 canonical

GHSA-mc7m-mf78-qjmx

Denial Of Service Linux Null Pointer Dereference Ubuntu Canonical Ubuntu Linux

3.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

3.3 LOW

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

Analysis Generated

May 28, 2026 - 19:26 vuln.today

DescriptionCVE.org

Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.

AnalysisAI

NULL pointer dereference in Ubuntu Linux kernel versions 6.8, 6.17, and 7.0 allows a local unprivileged user to crash the kernel via the AppArmor notification handling path. The flaw exists exclusively in Ubuntu-specific SAUCE patches layered on top of the upstream Linux kernel, meaning only Ubuntu kernels carrying these versions are affected - not upstream Linux or other distributions. No public exploit code or active exploitation has been identified at time of analysis; the impact is limited to a kernel oops (availability loss, CVSS A:L), with no confidentiality or integrity impact.

Technical ContextAI

SAUCE (Support, Accuracy, Ubuntu, Compatibility, Extensibility) patches are Ubuntu-specific modifications applied to the Linux kernel that are not present in upstream kernel releases. This vulnerability resides in the AppArmor LSM (Linux Security Module) notification subsystem within those SAUCE patches. CWE-476 (NULL Pointer Dereference) indicates the kernel attempts to dereference a pointer that has not been initialized or has been set to NULL, resulting in a kernel oops - an unhandled exception that may halt or restart the affected system. The affected CPE is cpe:2.3:a:canonical:ubuntu_linux:*:*:*:*:*:*:*:*, covering Ubuntu Linux kernel builds at versions 6.8, 6.17, and 7.0. The Launchpad patch reference targets the 'noble' branch, which corresponds to Ubuntu 24.04 LTS.

RemediationAI

Apply the upstream fix available from Canonical's Launchpad repository for the noble branch (commit 7f3c4902c39432ce7ea0d384cb70eba282247fac) at https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=7f3c4902c39432ce7ea0d384cb70eba282247fac. Users running affected Ubuntu kernel versions 6.8, 6.17, or 7.0 should monitor for patched kernel package releases from Canonical via the standard Ubuntu security update channel and apply via 'apt update && apt upgrade' once available; a reboot is required for kernel updates to take effect. A released patched package version number has not been independently confirmed from available data - watch Ubuntu Security Notices (USN) for the formal advisory. As a compensating control, restricting interactive shell access to trusted users only limits the attack surface, since exploitation requires a local low-privileged account; this does not eliminate the vulnerability but reduces exposure on multi-tenant systems.