VULNERABILITY INTELLIGENCE

CVE-2026-28529

CVSS score7.8 HIGH
EPSS probability0.18%
CISA KEVNot currently listed
Published2026-03-25
Last modified2026-08-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-416

Primary references