CVE-2026-47330 | BDVDB-2026-336392 Detail

CanonicalUbuntu Linux

Description#

Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact none. Attack vector: local.

Weaknesses#

CWE-457 Use of uninitialized variable

References#

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=9b2c6eded493fa50e7c8cd3618d7ebe1358abaab

Exploit#

No public exploit known

History#

Version 12026-05-28Record published in the CVE List.

Published

Published: 2026-05-28
Last modified: 2026-05-28

Vendor information

Vendor: Canonical
Product: Ubuntu Linux

All Canonical vulnerabilities

Score

3.3 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 0.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 6.8.0 and < 6.8.0-124.124
Fixed
6.8.0-124.124
Vulnerable
>= 6.17.0 and < 6.17.0-35.35
Fixed
6.17.0-35.35
Vulnerable
>= 7.0.0 and < 7.0.0-22.22
Fixed
7.0.0-22.22

Scoring System

CVSS v4.0

Not available

CVSS v3.1

3.3 Low

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

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).