CVE-2026-28529

HighCVSS 7.8/10Last modified Aug 17, 2026

Description

cryptodev-linux version 1.14 and prior contain a page reference handling flaw in the get_userbuf function of the /dev/crypto device driver that allows local users to trigger use-after-free conditions. Attackers with access to the /dev/crypto interface can repeatedly decrement reference counts of controlled pages to achieve local privilege escalation.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

No affected versions have been published.

Timeline

Published
Mar 25, 2026
Last modified
Aug 17, 2026
NVD status
Analyzed

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CVE-2026-28529: High severity, CVSS 7.8 | Vulnix