CVE-2026-43323

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
EPSS Score
0.0%
Exploitation probability in 30 days
Top 98% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: May 8, 2026 (63 days ago)
Last Modified: May 8, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel. Incorrect tracking of virtual runtime (zero_vruntime) in the scheduler's fair scheduling component can occur under specific conditions, such as when tasks frequently yield or when multiple control groups (cgroups) are active. This can lead to the scheduler's internal state becoming inconsistent, potentially causing system instability or unresponsiveness. A local attacker could exploit this vulnerability to cause a denial of service.

CWE

CWE-911

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 🔗 git.kernel.org