CVE-2026-47327

ℹ️ low

Summary

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.

CVSS Score

3.3

Low

EPSS Score

0.1

Exploit Probability

Published Date

2026-05-28

First Seen: 2026-05-29

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 2.8% of all 329,456 vulnerabilities in our database.

#320,235

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: May 28, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

🏆 Discovered By

Tristan Madani (@TristanInSec), Talence Security

SSVC data provided by CISA

Last Modified 2026-06-09

Source NVD 🔗

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

CWE IDs (Weakness Types)

CWE-476

📦 Affected Products 3

Vendor	Product	Status	Affected Versions
canonical	ubuntu_linux	Affected	v24.04
canonical	ubuntu_linux	Affected	v25.10
canonical	ubuntu_linux	Affected	v26.04

🔗 References 1

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+sou...

Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-47326	🔶 medium	5.5	0.1	Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor not...	2026-05-28
CVE-2026-47328	🔶 medium	6.1	0.1	Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not ...	2026-05-28
CVE-2026-47329	ℹ️ low	3.3	0.1	Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor n...	2026-05-28
CVE-2026-47330	ℹ️ low	3.3	0.1	Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitializ...	2026-05-28
CVE-2026-47331	⚠️ high	7.8	0.1	Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivile...	2026-05-28
CVE-2026-47332	🔶 medium	5.5	0.1	Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structu...	2026-05-28

These CVEs affect the same products