How severe is CVE-2026-47330?

CVE-2026-47330 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-47330 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-47330?

CVE-2026-47330 primarily affects Canonical Ubuntu Linux. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-47330?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-47330 have an EU (EUVD) identifier?

Yes. CVE-2026-47330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32985.

When was CVE-2026-47330 published?

CVE-2026-47330 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-47330

CVE-2026-47330 is a low-severity vulnerability in Canonical Ubuntu Linux with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-457.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32985
Weakness: CWE-457
Affected product: Canonical Ubuntu Linux
Published: 2026-05-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-47330?: 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.
How severe is CVE-2026-47330?: CVE-2026-47330 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-47330 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-47330?: CVE-2026-47330 primarily affects Canonical Ubuntu Linux. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-47330?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-47330 have an EU (EUVD) identifier?: Yes. CVE-2026-47330 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32985.
When was CVE-2026-47330 published?: CVE-2026-47330 was published on 2026-05-28 and last updated on 2026-06-17.

References

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

Affected products (3)

cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:25.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:26.04:*:*:*:*:*:*:*

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