CVE-2026-53615: util-linux libblkid DOS extended-partition overflow produces invalid partition metadata

Overview

Severity

High (CVSS 8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Oct

Released

2026-10-16

EPSS Score

0.18% (percentile: 6.8%)

Affected Products (1)

Other

• 0-17084

Revision History

• 2026-10-16: Information published.