What is CVE-2026-47333?

CVE-2026-47333 is a high-severity vulnerability in Canonical Ubuntu Linux, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2026-05-28.

How severe is CVE-2026-47333?

High severity. CVSS v3 base score is 7.8 out of 10.

Out-of-bounds Read in Canonical Ubuntu Linux

CVE-2026-47333

Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by…

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Canonical Ubuntu Linux — versions 6.8.0, 6.17.0, 7.0.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

security@ubuntu.com (patch)

Frequently asked questions

What is CVE-2026-47333?: CVE-2026-47333 is a high-severity vulnerability in Canonical Ubuntu Linux, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2026-05-28.
How severe is CVE-2026-47333?: High severity. CVSS v3 base score is 7.8 out of 10.