CVE-2026-43026

medium Red Hat
CVSS v3 Base Score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 93% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: May 1, 2026 (13 days ago)
Last Modified: May 1, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's netfilter component, specifically within the ctnetlink module. This vulnerability occurs because certain fields are not properly initialized when a new connection tracking expectation is created without the Network Address Translation (NAT) expectation attribute. This oversight can lead to the disclosure of stale data from previously used memory, which a local user could potentially access. This information disclosure could expose sensitive data from the kernel to an unprivileged user.

CWE

CWE-824

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