CVE Database›Document archive›CVE-2026-98873

CVE-2026-98873

kernel: netfilter: nf_conntrack_expect: zero at allocation time

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Severity

Low

Red Hat Product Security

3.3

CVSS 3.1

Review impact separately from score.

Published · October 23, 2026

Updated · October 26, 2026

Description

A flaw was found in the Linux kernel's Netfilter connection tracking subsystem. Memory allocated for tracking expected network connections was not properly cleared upon allocation. A local user could exploit this vulnerability by querying connection tracking records via the Netlink interface, leading to an information disclosure of uninitialized kernel memory.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE-908 · Use of Uninitialized Resource