What is CVE-2026-47328?

CVE-2026-47328 is a medium-severity vulnerability in Canonical Ubuntu Linux, classified under CWE-590. CVSS score: 6.1/10. Published 2026-05-28.

How severe is CVE-2026-47328?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Canonical Ubuntu Linux

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 loc…

EPSS: 0.000 (3.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

Affected products

Canonical Ubuntu Linux — versions 6.8.0, 6.17.0, 7.0.0

Weakness classification (CWE)

CWE-590

References

security@ubuntu.com (patch)

Frequently asked questions

What is CVE-2026-47328?: CVE-2026-47328 is a medium-severity vulnerability in Canonical Ubuntu Linux, classified under CWE-590. CVSS score: 6.1/10. Published 2026-05-28.
How severe is CVE-2026-47328?: Medium severity. CVSS v3 base score is 6.1 out of 10.