CVE-2026-68453

medium Red Hat
CVSS v3 Base Score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: August 13, 2026 (24 days ago)
Last Modified: August 13, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's s390/zcrypt component. This vulnerability arises from insufficient validation of user-controlled length fields within the Common Cryptographic Architecture (CCA) token structures. An attacker could manipulate these fields to cause a buffer over-read or under-run. This could lead to a kernel crash, resulting in a denial of service, or the exposure of sensitive memory information.

CWE

CWE-125

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org